34 results on '"Mason, Kazlin"'
Search Results
2. Differential Diagnosis of a Pharyngeal Fricative and Therapeutic Monitoring of Velopharyngeal Function Using Magnetic Resonance Imaging.
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Mason, Kazlin N., Botz, Ellie, and Gampper, Thomas
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TONGUE physiology , *SPEECH therapy , *ARTICULATION disorders , *PATIENT education , *SPEECH therapists , *DIFFERENTIAL diagnosis , *RESEARCH funding , *SPEECH , *THREE-dimensional imaging , *PROMPTS (Psychology) , *SOFT palate , *PALATE , *QUESTIONNAIRES , *MAGNETIC resonance imaging , *TREATMENT effectiveness , *DESCRIPTIVE statistics , *HEALTH planning , *LONGITUDINAL method , *PHARYNX , *MOTIVATION (Psychology) , *CAREGIVERS , *RESEARCH methodology , *ADENOIDS , *SPEECH disorders , *HUMAN voice , *COMPARATIVE studies , *VELOPHARYNGEAL insufficiency , *WAKEFULNESS , *PSYCHOSOCIAL factors , *DISEASE complications , *CHILDREN - Abstract
Purpose: Speech disorders associated with velopharyngeal dysfunction (VPD) are common. Some require surgical management, while others are responsive to speech therapy. This is related to whether the speech error is obligatory (passive) or compensatory (active). Accurate identification of speech errors is necessary to facilitate timely and appropriate intervention. Recent studies have supported the role of magnetic resonance imaging (MRI) in the assessment process for VPD. The purpose of this study was to utilize MRI to support differential diagnosis and treatment planning in a child presenting with inconsistent nasal air escape, mild hypernasality, and compensatory speech errors. Method: A nonsedated, fully awake, velopharyngeal (VP) MRI protocol was implemented to acquire anatomic data at rest and during phonation. Segmentations and visualization of the tongue, palate, adenoids, and nasopharyngeal airway were completed. Anatomic linear measurements were obtained for VP variables to assess VP function, establish a baseline, and monitor change over time. Results: VP anatomy was successfully visualized on MRI in multiple imaging planes. All anatomic measurements fell within normative expectations. Elevation and retraction of the soft palate occurred against the adenoid pad. A pharyngeal fricative was documented, resulting a small VP gap during speech. In contrast, adequate VP closure was obtained for vowels and other oral consonant sounds. Conclusions: Quantitative assessment and visualization of the anatomy demonstrated adequate VP closure capabilities and a pharyngeal fricative substitution that had not been adequately perceived during routine clinical assessments. This study suggests a promising additive role for VP MRI for enhanced differential diagnosis and therapeutic monitoring in children with VPD and concomitant speech disorders. Supplemental Material: https://doi.org/10.23641/asha.27905451 [ABSTRACT FROM AUTHOR]
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- 2025
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3. Where is the Care? Identifying the Impact of Rurality on SLP Caseloads and Treatment Decisions for Children with Cleft Palate.
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Mason, Kazlin N. and Kotlarek, Katelyn J.
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SPEECH ,RESEARCH funding ,DECISION making in clinical medicine ,CHI-squared test ,DESCRIPTIVE statistics ,RURAL health services ,PHYSICIAN practice patterns ,RURAL population ,PHARYNGEAL muscles ,CLEFT lip ,DATA analysis software ,CLEFT palate ,EMPLOYEES' workload ,MEDICAL referrals - Abstract
Objective : Challenges providing cleft/craniofacial care in rural communities are often reported, leading to disparities in resources available to clinicians. The purpose of this study was to identify the impact of rurality on caseloads and practice patterns of speech-language pathologists (SLPs) regarding speech and velopharyngeal function for children with cleft lip and/or palate (CL/P). Design : A national, survey of US-based SLPs (N = 359 respondents) investigated resources, comfort level, caseloads, and practice patterns for children with CL/P. Sub-county classifications that delineated levels of rurality were utilized. Descriptive statistics and chi-square analyses were conducted to determine the impact of population density on assessment and referral decisions. Results : Nearly 83% of SLPs reported providing care for a child with CL/P and 41.4% of these SLPs reported five or more children with CL/P on caseload throughout their career. There were no significant differences in rurality of practice setting and the likelihood of treating a child with CL/P. Significant differences were present between rural, town, suburban, and metropolitan-based SLPs regarding available resources (p = 0.035). SLPs in rural settings reported feeling uncomfortable treating children with CL/P compared to those in metropolitan settings (p = 0.02). Distance to the cleft/craniofacial team and comfort levels impacted referral decisions. Conclusions : Most SLPs report having children with CL/P on caseload regardless of practice location. Rurality impacted assessment and referral decisions, especially surrounding access to resources and comfort levels engaging in team care. Findings have implications for developing support systems and reducing barriers for rural SLPs working with children born with CL/P. [ABSTRACT FROM AUTHOR]
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- 2024
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4. A Computational Model Reveals How Varying Muscle Activation in the Lateral Pharyngeal Wall and Soft Palate Differentiates Velopharyngeal Closure Patterns.
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DiSalvo, Matthew D., Blemker, Silvia S., and Mason, Kazlin N.
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PHARYNX physiology ,BIOMECHANICS ,COMPUTER simulation ,RESEARCH funding ,STRUCTURAL models ,SPEECH ,COMPUTER-aided design ,SOFT palate ,RESEARCH methodology evaluation ,FINITE element method ,MAGNETIC resonance imaging ,DESCRIPTIVE statistics ,EXPERIMENTAL design ,PHARYNGEAL muscles ,RESEARCH methodology ,CONFIDENCE intervals ,VELOPHARYNGEAL insufficiency ,INTER-observer reliability - Abstract
Purpose: Finite element (FE) models have emerged as a powerful method to study biomechanical complexities of velopharyngeal (VP) function. However, existing models have overlooked the active contributions of the lateral pharyngeal wall (LPW) in VP closure. This study aimed to develop and validate a more comprehensive FE model of VP closure to include the superior pharyngeal constrictor (SPC) muscle within the LPW as an active component of VP closure. Method: The geometry of the velum and the lateral and posterior pharyngeal walls with biomechanical activation governed by the levator veli palatini (LVP) and SPC muscles were incorporated into an FE model of VP closure. Differing muscle activations were employed to identify the impact of anatomic contributions from the SPC muscle, LVP muscle, and/or velum for achieving VP closure. The model was validated against normative magnetic resonance imaging data at rest and during speech production. Results: A highly accurate and validated biomechanical model of VP function was developed. Differing combinations and activation of muscles within the LPW and velum provided insight into the relationship between muscle activation and closure patterns, with objective quantification of anatomic change necessary to achieve VP closure. Conclusions: This model is the first to include the anatomic properties and active contributions of the LPW and SPC muscle for achieving VP closure. Now validated, this method can be utilized to build robust, comprehensive models to understand VP dysfunction. This represents an important advancement in patient-specific modeling of VP function and provides a foundation to support development of computational tools to meet clinical demand. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Acute Laryngeal Injury in Patients Undergoing Airway Screening at a Long‐Term Acute Care Hospital.
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Pagel, Jessica M., Taffe, Erin, Jonas, Rachel H., Daniero, James J., Mason, Kazlin, and McGarey, Patrick O.
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Background/Objectives: Acute laryngeal injury (ALgI) is an identified complication of prolonged intubation. Its evolution into mature stenosis and factors affecting decannulation are unclear. This retrospective review aims to characterize the incidence and characteristics of ALgI development and decannulation. Methods: Retrospective study of post‐intubated patients with a tracheostomy seen for screening evaluation at a single long‐term acute care hospital (LTACH) from 2019 to 2022. Results: Patients were followed for an average of 115 days after extubation. Forty‐nine of 119 adult patients had ALgI. Those with ALgI were more likely female (61% vs. 35.7%, p = 0.006) with higher body mass index (BMI; 32.9 vs. 28.1, p = 0.03) and lower height (166 vs. 171.1 cm, p = 0.01). Decannulation rates in patients with ALgI were 69.4% compared to 84.3% in patients without ALgI (p = 0.053). Patients with ALgI were scoped more quickly post‐extubation (28.8 vs. 36.6 days, p = 0.04), but time to decannulation did not differ (66.6 vs. 81.2 days, p = 0.74). Lower CCI (4.03 vs 6.93) and lack of tobacco use (41.2% vs 73.3%) were associated with successful decannulation (p = 0.038, p = 0.0008). Patients with ALgI treated conservatively (observation or medical management) were decannulated up to 71 days post‐extubation. Further decannulations only occurred with surgical intervention. Conclusions: Female gender, higher BMI, and shorter height are associated with ALgI among patients undergoing a LTACH screening evaluation. CCI and tobacco have a negative association with decannulation success. Among the ALgI cohort, no patient treated conservatively was decannulated after 71 days. Level of Evidence: 4 Laryngoscope, 134:4642–4648, 2024 [ABSTRACT FROM AUTHOR]
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- 2024
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6. Incorporating Velopharyngeal MRI into the Clinical Decision-Making Process for a Patient Presenting with Velopharyngeal Dysfunction Following a Failed Palatoplasty.
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Mason, Kazlin N. and Black, Jonathan
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SPEECH evaluation ,MEDICAL protocols ,HUMAN services programs ,VOICE disorders ,MAGNETIC resonance imaging ,DECISION making in clinical medicine ,TREATMENT effectiveness ,SURGICAL complications ,TREATMENT failure ,SPEECH disorders ,VELOPHARYNGEAL insufficiency ,CLEFT palate ,HEALTH care teams ,DISEASE complications - Abstract
This clinical report describes the implementation of magnetic resonance imaging (MRI) to evaluate a patient with long-standing velopharyngeal dysfunction. She was referred to the craniofacial clinic at age 10 with no prior surgical history and subsequently completed a Furlow palatoplasty due to a suspected submucous cleft palate. However, results were unfavorable with minimal improvement in speech or resonance. The clinical presentation, treatment, outcomes, and contributions from MRI for secondary surgical planning are described. Addition of MRI into the clinical workflow provided insights into the anatomy and physiology of the velopharyngeal mechanism that were unable to be obtained from nasendoscopy and speech evaluation alone. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Effect of Motor-Based Speech Intervention on Articulatory Placement in the Treatment of a Posterior Nasal Fricative: A Preliminary MRI Study on a Single Subject
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Mason, Kazlin N., Pua, Eshan, and Perry, Jamie L.
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Background: Posterior nasal fricatives are a learned compensatory articulation error and commonly substituted for oral fricatives. Treatment of such articulation errors requires the modification or teaching of skilled movements. A motor-based approach is designed to teach the complex motor skill movement sequences required in the production of sounds. Although motor learning research is well established, little has been done to determine how the approach changes the underlying physiology of articulatory movements. While the underlying anatomical configuration of the posterior nasal fricative has been described, no studies have quantified anatomic and physiological changes pre- and post-treatment. Aims: To use magnetic resonance imaging (MRI) to visualize and quantify the results of motor-based speech-intervention approach on articulatory placement for the treatment of the posterior nasal fricative. Methods & Procedures: A 6-year-old male with a history of ear infections and posterior nasal fricative substitution for /s/ underwent six 1-h sessions of a motor-based treatment approach over the course of 2 weeks. Pre- and post-treatment evaluation included perceptual and instrumental assessment of speech and resonance. Perceptual resonance was rated by two speech-language therapists and articulation was assessed at the single-word level. Instrumental assessment included the See-Scape, Nasometer II and MRI during the sustained phonation of /s/. Amira v5.6 Visualization and Volume modelling software used the midsagittal and oblique coronal plane to measure dimensions of the articulatory anatomy. Outcomes & Results: Interrater reliability was assessed using a Pearson product moment correlation (a = 0.05) and ranged from r = 0.91 to 0.95. Intra-rater reliability was assessed using the intra-class correlation coefficient (0.976) demonstrating a high degree of reliability with a 95% confidence interval. Articulation improved from 0% accuracy for /s/ in isolation at baseline to 100% for /s/ at the word level and 95% accuracy during conversational speech by session 6. Post-treatment results from this study revealed a greater shortening of the levator veli palatini (levator) muscle length during articulatory movements, more pronounced velar knee and dimple, decreased velar thickness, increased velar length and altered tongue position. Conclusions & Implications: This study demonstrated the use of pre- and post-treatment imaging methodology to quantify articulatory changes following an intensive motor-based treatment approach. MRI demonstrated quantifiable changes in articulatory placement. Individuals who exhibit non-developmental and phoneme-specific articulation errors, such as the posterior nasal fricative, may be excellent candidates for short-term, intensive and frequent speech therapy sessions to remediate the production of the posterior nasal fricative.
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- 2018
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8. Continuing Education Needs of Speech-Language Pathologists for Assessing and Treating Children With Cleft Palate: A National Analysis Across Areas of Varying Population Density.
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Kotlarek, Katelyn J., Rogers, Katelan, and Mason, Kazlin N.
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VOICE disorder treatment ,SOCIAL media ,WORK ,ARTICULATION disorders ,SPEECH therapists ,WORLD Wide Web ,SERIAL publications ,COMPUTER software ,PROFESSIONAL practice ,RESEARCH funding ,POPULATION density ,FISHER exact test ,SPEECH therapy education ,SCHOOLS ,TEACHING aids ,EMOTIONS ,CONFERENCES & conventions ,INFORMATION resources ,CERTIFICATION ,DESCRIPTIVE statistics ,MENTORING ,CHI-squared test ,TEXTBOOKS ,INFORMATION needs ,SURVEYS ,EMAIL ,ATTITUDES of medical personnel ,METROPOLITAN areas ,RURAL conditions ,CLINICAL competence ,CONTINUING education ,HUMAN comfort ,QUALITY assurance ,DATA analysis software ,CLEFT palate ,EXPERIENTIAL learning ,WEBINARS - Abstract
Purpose: The purpose of this study was to identify training gaps and continuing education (CE) needs for speech-language pathologists (SLPs) in evaluating and treating children with cleft palate across and among areas of varying population density. Method: An anonymous 35-question survey lasting approximately 10-15 min was created in Qualtrics based on a previously published study. The survey information and link were electronically distributed to American Speech-Language-Hearing Association (ASHA)-certified SLPs through ASHA listservs, social media, individual-state SLP organizations, and an e-mail list of publicly listed SLPs. A total of 359 survey responses were collected. Results: Respondents varied in terms of age, type of certification, practice location, and clinical experience with cleft palate, with the largest percentage (46.7%) of respondents in a school-based setting. Only 28.5% reported currently feeling comfortable treating children with cleft palate. Respondents reported conventions/conferences (25.4%) and webinars (23.2%) were the most helpful resources, but DVDs were frequently not used for CE. Information from the child's cleft team (84.4%) and mentors/colleagues (70%) were considered high-quality resources. Respondents indicated information on treatment of articulation (79.2%) and resonance (78.4%) disorders as well as specific therapy techniques (76.9%) would be very helpful for clinical practice. Population density significantly influenced how respondents ranked the perceived helpfulness and quality of different resources as well as desired topics for future resources. Conclusions: There is a continued need for adequate training and CE opportunities for SLPs, particularly related to assessing and treating children with cleft palate. Increased access to high-quality CE resources will be key to filling educational gaps present for SLPs, especially in areas of low-population density. [ABSTRACT FROM AUTHOR]
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- 2024
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9. Magnetic Resonance Imaging for Assessing Velopharyngeal Function: Current Applications, Barriers, and Potential for Future Clinical Translation in the United States.
- Author
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Mason, Kazlin N.
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PHARYNX physiology ,HEALTH services accessibility ,ATTITUDES of medical personnel ,SOFT palate ,CRANIOFACIAL abnormalities ,MAGNETIC resonance imaging ,VELOPHARYNGEAL insufficiency ,CLEFT palate ,CLEFT lip ,DESCRIPTIVE statistics ,CHI-squared test ,RESEARCH funding ,NEEDS assessment - Abstract
Objective: The use of magnetic resonance imaging (MRI) in the assessment process for children with cleft/craniofacial conditions remains uncommon, particularly for velopharyngeal assessments. The purpose of this study was to analyze the perceived clinical utility of MRI for cleft/craniofacial providers and identify barriers that exist for clinical translation of this imaging modality to this population of patients. Methods: A 38-item survey was disseminated to craniofacial team providers. Workplace context and demographics, MRI as a research and clinical tool, access and barriers for use of MRI, and needs for successfully establishing MRI protocols at clinical sites were investigated. Descriptive statistics were used to identify differences in the clinical use of MRI across disciplines. Chi-square analyses were conducted to determine how different specialties perceived potential barriers. Results: Respondents reported that MRI is likely to be beneficial for clinical assessments (93.5%) and that this imaging modality is available for use (83.8%). However, only 11.8% of providers indicated the use of MRI in their clinical assessments. This discrepancy highlights a potential disconnect between perceived use and implementation of this imaging methodology on cleft and craniofacial teams. A number of barriers were identified by providers. Challenges and opportunities for clinical translation of MRI protocols were highlighted. Conclusion: Results may guide the development for improved clinical feasibility and implementation of MRI for clinical planning in this population of patients. Reported barriers highlight additional areas for translational research and the potential for the development of clinical tools related to MRI assessment and protocol implementation. [ABSTRACT FROM AUTHOR]
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- 2024
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10. Simulation of Velopharyngeal Biomechanics Identifies Differences in Sphincter Pharyngoplasty Outcomes: A Matched Case–Control Study.
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Tran, Thanh, Perry, Jamie, Blemker, Silvia, and Mason, Kazlin
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PHARYNX physiology ,COMPUTER simulation ,PHARYNX ,PHARYNGEAL muscles ,THREE-dimensional imaging ,HEALTH outcome assessment ,CASE-control method ,MATHEMATICS ,RESEARCH funding ,BIOMECHANICS ,SPEECH - Abstract
The purpose of this study was to develop a framework for 3D subject-specific computational models capable of simulating velopharyngeal biomechanics for anatomic changes that occur following pharyngoplasty and to gain insight into biomechanical factors that may lead to different speech/surgical outcomes. Patient-specific models for two, matched participants with differing speech/surgical outcomes were developed: one with a successful pharyngoplasty outcome and one with a failed pharyngoplasty outcome. Surgical scenarios were simulated to model pharyngoplasty location, identify LVP muscle biomechanics, and identify an optimal pharyngoplasty location for each participant. These simulations illustrate the potential for optimizing pharyngoplasties based on patient-specific geometry. [ABSTRACT FROM AUTHOR]
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- 2024
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11. Evaluating the Accuracy of Using at Rest Images to Determine the Height of Velopharyngeal Closure
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Mason, Kazlin N., Hauhuth, Kelly, Perry, Jamie L., and Riski, John E.
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- 2018
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12. Utilization of 3D MRI for the Evaluation of Sphincter Pharyngoplasty Insertion Site in Patients With Velopharyngeal Dysfunction.
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Mason, Kazlin N., Riski, John E., Williams, Joseph K., Jones, Richard A., and Perry, Jamie L.
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PHARYNX surgery ,PHARYNX ,THREE-dimensional imaging ,MAGNETIC resonance imaging ,VELOPHARYNGEAL insufficiency ,CLEFT palate ,POSTOPERATIVE period ,REPEATED measures design ,CEPHALOMETRY ,DESCRIPTIVE statistics ,LONGITUDINAL method - Abstract
Objective : Sphincter pharyngoplasty is a surgical method to treat velopharyngeal dysfunction. However, surgical failure is often noted and postoperative assessment frequently reveals low-set pharyngoplasties. Past studies have not quantified pharyngoplasty tissue changes that occur postoperatively and gaps remain related to the patient-specific variables that influence postoperative change. The purpose of this study was to utilize advanced three-dimensional imaging and volumetric magnetic resonance imaging (MRI) data to visualize and quantify pharyngoplasty insertion site and postsurgical tissue changes over time. Design : A prospective, repeated measures design was used for the assessment of craniometric and velopharyngeal variables postsurgically. Imaging was completed across two postoperative time points. Tissue migration, pharyngoplasty dimensions, and predictors of change were analyzed across imaging time points. Results : Significant differences were present between the initial location of pharyngoplasty tissue and the pharyngoplasty location 2 to 4 months postoperatively. The average postoperative inferior movement of pharyngoplasty tissue was 6.82 mm, although notable variability was present across participants. The pharyngoplasty volume decreased by 30%, on average. Conclusions : Inferior migration of the pharyngoplasty tissue was present in all patients. Gravity, scar contracture, and patient-specific variables likely interact, impacting final postoperative pharyngoplasty location. The use of advanced imaging modalities, such as 3D MRI, allows for the quantification and visualization of tissue change. There is a need for continued identification of patient-specific factors that may impact the amount of inferior tissue migration and scar contracture postoperatively. [ABSTRACT FROM AUTHOR]
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- 2022
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13. Does the Type of MRI Sequence Influence Perceived Quality and Measurement Consistency in Investigations of the Anatomy of the Velopharynx?
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Perry, Jamie L., Haenssler, Abigail E., Kotlarek, Katelyn J., Chen, Joshua Y., Fang, Xiangming, Guo, Yifan, Mason, Kazlin, and Webb, Michael
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RELIABILITY (Personality trait) ,PHARYNX ,ANALYSIS of variance ,MAGNETIC resonance imaging ,DIAGNOSTIC imaging ,PROTONS - Abstract
Purpose: The purpose of this study was to evaluate perceived image quality, confidence in identifying key velopharyngeal landmarks, and reliability of making velopharyngeal measures between 3-dimensional (3-D) and 2-D magnetic resonance imaging (MRI) methods and between T1-, T2-, and proton density (PD)-weighted sequences. Methods: Twelve healthy participants completed an MRI study. Three raters assessed overall image quality and their ability to identify key anatomic features within the images. A single rater evaluated the reliability of making measures between imaging methods and sequence types to determine if image type (2-D and 3-D) or image sequence (T1, T2, PD weighted) resulted in different values for key velopharyngeal landmarks. Results: An analysis of variance test revealed image quality was rated significantly different based on the scan type (P <.001) and the sequence used (P =.015). Image quality was rated higher among 2-D MR images compared to 3-D, and higher among T2 sequences compared to T1- and PD-weighted imaging methods. In contrast, raters favored 3-D sequences over 2-D sequences for identifying velopharyngeal landmarks. Measures of reliability revealed scan type significantly impacted 2 of the 6 variables but to a minimal degree; however, sequence type had no impact on measures of reliability across all variables. Conclusion: Results of the study suggest the scan type and sequence used are factors that likely do not impact the reliability of measures. Based on image quality, the recommended technique for velopharyngeal imaging would be using a 2-D T2-weighted technique. However, based on the ability to identify key landmarks, a 3-D T1- or PD-weighted technique was favored. [ABSTRACT FROM AUTHOR]
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- 2022
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14. English-Only Treatment of Compensatory Speech Errors in a Bilingual Adoptee With Repaired Cleft Palate: A Descriptive Case Study.
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Schleif, Eshan Pua, Mason, Kazlin, and Perry, Jamie L.
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SPEECH therapy , *PHYSICAL diagnosis , *ENGLISH language , *MULTILINGUALISM , *RESEARCH methodology , *INTELLIGIBILITY of speech , *CLEFT palate , *SPEECH evaluation , *TREATMENT effectiveness , *PRE-tests & post-tests , *INTER-observer reliability , *ADOPTED children , *CONSONANTS , *DESCRIPTIVE statistics , *STATISTICAL correlation , *MOTOR ability , *VOICE disorders , *MOUTH , *EVALUATION , *ADOLESCENCE ,RESEARCH evaluation - Abstract
Purpose: The purpose of this clinical focus article is to provide a descriptive case study of a late-adopted, bilingual adolescent with cleft palate speech errors. Specifically, we examined the cross-linguistic generalization of remediated compensatory cleft errors, following treatment in English (second language) only. The overarching goal of this study is to gain insights into the complexity of speech intervention for the adopted population with delayed cleft palate repair. Method: A 14-year-old female adopted from China with a repaired unilateral cleft lip and palate and maladaptive articulation errors underwent 55 one-hour sessions of a motor-based, speech therapy approach over a 15-month span, targeting English phonemes only. Pre-, mid-, and posttreatment evaluation included perceptual and instrumental assessment of speech and resonance. Outcome measures at each time point included perceptual speech and resonance ratings, nasometry scores, and percent consonants correct (PCC) in both English and Mandarin. Results: PCC in English improved from 60% in single words and 35% in sentences pretreatment to 100% in single words and sentences during posttreatment assessment. Without direct treatment in Mandarin, PCC in Mandarin improved from 56% in single words and 50% in sentences pretreatment to 100% in single words and 99% in sentences during posttreatment assessment. Posttreatment nasometry scores decreased by 20% for the nasal sample and 17% for the oral sample compared to pretreatment. Conclusions: This descriptive case study demonstrated successful remediation of cleft palate speech errors, following 15 months of treatment in a late-adopted bilingual adolescent using a motor-based therapy approach. Treatment of errors in English (second language) led to generalization of correct productions in Mandarin (first language). This study presents the potential for bilingual late adoptees to achieve intelligible speech in both languages when motor-based therapy principles are applied to intervention. [ABSTRACT FROM AUTHOR]
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- 2021
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15. The Effect of Dental and Occlusal Anomalies on Articulation in Individuals With Cleft Lip and/or Cleft Palate.
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Mason, Kazlin N.
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ARTICULATION disorders ,CLEFT lip ,CLEFT palate ,FACIAL bone growth ,MALOCCLUSION ,ORAL surgery ,ORTHODONTICS ,PHONETICS ,SPEECH evaluation ,TEETH abnormalities ,DISEASE prevalence ,DISEASE complications ,DISEASE risk factors - Abstract
Purpose: Dental and occlusal anomalies are common in individuals with cleft lip and palate, placing them at risk for speech sound distortions. Speech-language pathologists and dental practitioners frequently interact when presented with clinical problems secondary to dental and occlusal anomalies. This is especially true when treating a child with a cleft lip and palate. The speech sound error types must be identified and their etiologies evaluated to develop appropriate management plans. The purpose of this review article is to describe the types of dental and occlusal anomalies that are common in individuals with cleft lip and/or palate and discuss the impact these anomalies have on articulation. Method: A review of the literature was completed with a focus on prevalence, definitions, and descriptions of dental and occlusal anomalies in individuals with cleft lip and palate. The impact of dental/occlusal anomalies on speech production is described. Results and Conclusions: There is sufficient evidence that dental and occlusal anomalies have an impact on articulation, but the relationship of dental or occlusal status is not always a direct one. The phonemes most affected by aberrant oral conditions are sibilants, though other phonemes may be impacted as well. These speech errors are considered to be obligatory oral distortions in that they are made in response to an oral structural defect. These speech errors are not typically amenable to speech therapy, but rather require orthodontic and/or surgical correction. Such treatment can be effective in improving these errors, often spontaneously, however, speech therapy may be necessary (and most effective) following correction of the dental and/or occlusal anomalies if errors persist. [ABSTRACT FROM AUTHOR]
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- 2020
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16. Academic Education of the Speech-Language Pathologist: A Comparative Analysis on Graduate Education in Two Low-Incidence Disorder Areas.
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Mason, Kazlin N., Sypniewski, Hannah, and Perry, Jamie L.
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CURRICULUM evaluation ,CHI-squared test ,COMPARATIVE studies ,DATABASES ,INTERNET ,MOUTH abnormalities ,NEEDS assessment ,POPULATION geography ,RARE diseases ,STUTTERING ,UNIVERSITIES & colleges ,GRADUATE education ,SPEECH therapy education ,JOB performance ,ACCREDITATION ,COURSE evaluation (Education) ,DISEASE incidence ,CRANIOFACIAL abnormalities ,DESCRIPTIVE statistics - Abstract
Background/Purpose: When working with a specialized population, it is necessary to have the appropriate clinical and academic training. However, many speech-language pathologists report being ill-prepared regarding best practice when evaluating and treating patients with low-incidence disorders, particularly cleft palate/craniofacial anomalies and fluency disorders. The purpose of this study was to compare differences in graduate speech-language pathology coursework in the United States across two low-incidence disorder areas: cleft/craniofacial anomalies and fluency disorders. Method: A review of the accredited graduate curricula offerings within these domains was completed. Information whether coursework in these areas was offered, if the course was taught as a full course or embedded within a related course, or whether the content was required or an elective, and if the course was taught by an expert was obtained. Results: Significant differences were present in the amount, quality, and type of course content offered for cleft/ craniofacial anomalies compared to fluency disorders. Only 72.83% of graduate speech-language pathologist programs offered content in cleft/craniofacial anomalies. Approximately one out of every four programs (27.17%) did not provide this content within the graduate curriculum. In contrast, content in fluency disorders was taught in 99.28% of graduate programs. Conclusion: Results demonstrate that graduate training in topics related to cleft/craniofacial anomalies is significantly limited, particularly in comparison to another low-incidence communication disorder. [ABSTRACT FROM AUTHOR]
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- 2020
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17. Growth of the craniofacial complex and its relationship to common first and second pharyngeal arch malformations: A narrative review.
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Mason, Kazlin N., Stockstill, John W., and Perry, Jamie L.
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- 2018
18. Can Dynamic MRI Be Used to Accurately Identify Velopharyngeal Closure Patterns?
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Perry, Jamie L., Mason, Kazlin, Sutton, Bradley P., and Kuehn, David P.
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VELOPHARYNGEAL insufficiency ,DIAGNOSTIC imaging ,MAGNETIC resonance imaging ,RESEARCH evaluation ,SPEECH ,CONTROL groups ,INTER-observer reliability ,DESCRIPTIVE statistics ,DIAGNOSIS - Abstract
Background: Dynamic magnetic resonance imaging (MRI) has been proposed as a non-invasive, child-friendly, reproducible, and repeatable imaging method providing a 3-dimensional view of the velopharyngeal structures and function during speech. However, the value of dynamic MRI as compared to imaging methods such as nasopharyngoscopy is not well understood. The aim of this study was to compare the ability of nasopharyngoscopy and dynamic MRI to accurately identify velopharyngeal closure patterns among adults without cleft palate. Methods: Participants included 34 healthy adults with normal anatomy between 19 and 33 years of age (mean = 23 years; SD = 4.1 years). Participants underwent dynamic MRI and nasopharyngoscopy studies and comparisons were performed to determine the intra- and inter-rater reliability for accurately determining closure pattern. The MRI acquisition was a dynamic acquisition of a 2D plane. Results: Strong inter- (k = .824; P < .001) and intra-rater (Rater 1: k = 0.879, P < .001, 94% agreement between ratings; Rater 2 with 100% agreement) agreement was observed for the identification of closure pattern using nasopharyngoscopy. Inter-rater agreement for ratings using MRI demonstrated moderate agreement (k = .489; P < .004). Examining point agreement revealed only 27 of the 33 ratings of MRI showed agreement (80%). Conclusion: This demonstrates that inter-rater reliability for determining closure patterns from nasopharyngoscopy is good; however, ratings using MRI was less reliable at determining closure patterns. It is likely that future improvements in dynamic imaging with MRI to enable 3D visualizations are needed for improved diagnostic accuracy for assessing velopharyngeal closure patterns. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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19. Changes in the Height of Velopharyngeal Closure Relative to the Cervical Spine From Infancy Through Adolescence in Patients With Cleft Palate.
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Mason, Kazlin N., Riski, John E., and Perry, Jamie L.
- Subjects
VELOPHARYNGEAL insufficiency ,CRANIOFACIAL abnormalities ,CLEFT palate ,HEALTH care teams ,MEDICAL needs assessment ,SPINE ,CROSS-sectional method ,CERVICAL cord ,DIAGNOSIS - Abstract
Objective: Palpation is often used to identify C1, an intraoperative landmark, for placement of the pharyngoplasty. However, little is known about the relationship between the palatal plane (PP) and this cervical spine landmark across select variables. This study seeks to analyze variations in the height of velopharyngeal closure relative to C1 across differing cleft types and age groups. Design: Retrospective, cross-sectional analysis. Setting: Large, multidisciplinary center for craniofacial disorders. Methods: Clinical lateral cephalograms were analyzed in nonsyndromic patients who underwent primary palatoplasty. Regression analysis and analysis of covariance were completed to determine how age and cleft type impact underlying cervical and velopharyngeal measures. Results: Age (P < .001) and cleft type (P = .036) were significant predictors of the distance between the height of velopharyngeal closure and C1. Those with greater severity of clefting demonstrated larger distances between the height of velopharyngeal closure and C1. Compared to normative data, children with cleft palate have significantly larger distances between the PP and C1. The height of velopharyngeal closure above C1 was observed to range from 3.6 to 12.6 mm across cleft populations. Conclusions: This study demonstrates the variability in C1 as a landmark across variables including cleft type and age. Because of differences in the height of velopharyngeal closure across cleft types relative to C1, it is necessary to preoperatively quantify the vertical distance between the PP and palpable intraoperative landmark, C1, to determine the appropriate height of pharyngoplasty insertion. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
20. The Use of Magnetic Resonance Imaging (MRI) for the Study of the Velopharynx.
- Author
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Mason, Kazlin and Perry, Jamie
- Subjects
DIAGNOSTIC imaging ,MAGNETIC resonance imaging ,MEDICAL protocols ,COMPUTERS in medicine ,PHARYNX ,ANATOMY - Abstract
Magnetic resonance imaging (MRI) has contributed significantly to our understanding of the velopharyngeal mechanism and is the only imaging modality that allows for visualization of the internal musculature in vivo. Although velopharyngeal dysfunction often can be perceived through indirect assessments such as perceptual ratings, acoustic analysis, and pressure-flow assessment, these indirect methods can fail to identify the underlying cause of hypernasality or velopharyngeal dysfunction due to the inability to visualize the primary muscles responsible for speech. Direct imaging methods, such as nasendoscopy or videofluoroscopy, present drawbacks and are limited in the information that is provided within the oral and nasal cavities, as well as the posterior pharynx. MRI studies have enhanced our knowledge of the velopharyngeal system and offer a foundation to establish the utility of using MRI clinically to improve speech outcomes for children with cleft palate and craniofacial anomalies. The purpose of this paper is to provide an overview of the underlying principles of MRI, describe the advantages and disadvantages of MRI, and discusses a standard protocol for assessing velopharyngeal anatomy. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
21. Relationship Between Age and Diagnosis on Volumetric and Linear Velopharyngeal Measures in the Cleft and Noncleft Populations.
- Author
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Mason, Kazlin N. and Perry, Jamie L.
- Published
- 2016
- Full Text
- View/download PDF
22. Age-Related Changes Between the Level of Velopharyngeal Closure and the Cervical Spine.
- Author
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Mason, Kazlin N., Perry, Jamie L., Riski, John E., and Xiangming Fang
- Published
- 2016
- Full Text
- View/download PDF
23. Sphincterplasty for Velopharyngeal Insufficiency in the Child Without a Cleft-Palate: Etiologies and Speech Outcomes.
- Author
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Golinko, Michael S., Mason, Kazlin, Nett, Katie, Riski, John E., and Williams, Joseph K.
- Published
- 2015
- Full Text
- View/download PDF
24. Understanding Access to Care: Factors Influencing Patient Attendance at Craniofacial Speech Evaluations.
- Author
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Heister C, Dillon K, Brady C, Soldanska M, Williams JK, and Mason K
- Abstract
Evaluate predictors for attendance and adherence to speech evaluations and determine factors that influence longitudinal care for patients with cleft palate and craniofacial differences., Retrospective, observational cohort study., Tertiary children's hospital., Eight hundred and eighty newborns receiving care between 2014 and 2022 were included in the study sample for longitudinal assessment of appointment adherence. Participants were included if they had a cleft-related diagnosis, were scheduled for an initial speech evaluation between 1 and 3 years old, were scheduled for follow-up speech evaluations between 3 and 6 years old, and had demographic, diagnostic, and clinical data in their charts., Variables of interest included demographic data, diagnostic criteria, insurance data, distance to clinic, speech/resonance characteristics, hard/soft palate integrity, and surgical data. Chi-square analyses, independent sample t -tests, and descriptive statistics were conducted to identify characteristics of those who attended appointments and those who did not. Logistic regression analyses were conducted to examine factors predictive of appointment adherence over time., A total of 66.9% of patients attended the initial speech evaluation. A total of 50.6% of participants adhered to follow-up appointments. Distance to clinic ( P = .018), insurance type ( P < .001), and cleft type ( P < .001) influenced initial speech evaluation attendance. For follow-up appointment adherence, cleft type ( P < .001) was the strongest predictor pre-pandemic, while severity of velopharyngeal function ( P = .037) strongly predicted adherence during the pandemic., Appointment adherence is multifactorial and driven by geographic, demographic, and clinical variables. Identifying barriers to care may improve appointment adherence for those with speech/resonance needs and prevent patients from being lost to follow-up., Competing Interests: Declaration of Conflicting InterestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2025
- Full Text
- View/download PDF
25. Levator Veli Palatini Muscle Ratio Is a Clinically Significant Anatomic Predictor for Velopharyngeal Surgical Need.
- Author
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Mason KN, Gampper T, and Black J
- Abstract
Objective: Velopharyngeal insufficiency (VPI) poses challenges for normal speech production, often necessitating surgical intervention. Determining optimal candidates for surgery remains complex and requires a nuanced understanding of underlying anatomic factors contributing to VPI. This study aimed to identify anatomic predictors that drive surgical recommendations for VPI., Design: Prospective observational cohort study., Setting: Pediatric tertiary care hospital., Methods: Magnetic resonance imaging data were acquired from 150 children (aged 4-17) to identify anatomic predictors of VPI and surgical need. Fourteen velopharyngeal variables were measured in the oblique coronal and midsagittal imaging planes. Calculations included differences in levator veli palatini (LVP) muscle angles of origin, mean extravelar length, differences between left and right extravelar segments, the VP Needs ratio, and a newly developed LVP ratio. Multivariate logistic regression models with k-fold cross validation were utilized to identify anatomic profiles predictive of VPI and receiving a surgical recommendation., Results: The models demonstrated high accuracy, sensitivity, and specificity. Among anatomic variables, the LVP ratio emerged as the strongest determinant of surgical need (β = 11.256, p < .001). Notably, an increase in the LVP ratio of 0.10 is associated with a 3.08-fold increase in the likelihood of receiving a surgical recommendation. LVP ratios above 1.0 were significant for both VPI classification and surgical need., Conclusions: The LVP ratio significantly differentiates individuals with VPI and is predictive of surgical need for VPI management. Inclusion of the LVP ratio into clinical evaluations may refine patient stratification, enabling more precise surgical decision-making tailored to individual anatomic variations., Competing Interests: Declaration of Conflicting InterestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2024
- Full Text
- View/download PDF
26. Where is the Care? Identifying the Impact of Rurality on SLP Caseloads and Treatment Decisions for Children with Cleft Palate.
- Author
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Mason KN and Kotlarek KJ
- Subjects
- Humans, Female, Male, United States, Child, Rural Population, Workload statistics & numerical data, Surveys and Questionnaires, Referral and Consultation statistics & numerical data, Rural Health Services statistics & numerical data, Child, Preschool, Cleft Lip therapy, Cleft Palate therapy, Speech-Language Pathology
- Abstract
Challenges providing cleft/craniofacial care in rural communities are often reported, leading to disparities in resources available to clinicians. The purpose of this study was to identify the impact of rurality on caseloads and practice patterns of speech-language pathologists (SLPs) regarding speech and velopharyngeal function for children with cleft lip and/or palate (CL/P)., A national, survey of US-based SLPs (N = 359 respondents) investigated resources, comfort level, caseloads, and practice patterns for children with CL/P. Sub-county classifications that delineated levels of rurality were utilized. Descriptive statistics and chi-square analyses were conducted to determine the impact of population density on assessment and referral decisions., Nearly 83% of SLPs reported providing care for a child with CL/P and 41.4% of these SLPs reported five or more children with CL/P on caseload throughout their career. There were no significant differences in rurality of practice setting and the likelihood of treating a child with CL/P. Significant differences were present between rural, town, suburban, and metropolitan-based SLPs regarding available resources ( p = 0.035). SLPs in rural settings reported feeling uncomfortable treating children with CL/P compared to those in metropolitan settings ( p = 0.02). Distance to the cleft/craniofacial team and comfort levels impacted referral decisions., Most SLPs report having children with CL/P on caseload regardless of practice location. Rurality impacted assessment and referral decisions, especially surrounding access to resources and comfort levels engaging in team care. Findings have implications for developing support systems and reducing barriers for rural SLPs working with children born with CL/P., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: The work contained in this manuscript was presented at the American Cleft Palate/Craniofacial Association Annual Meeting in March 2022, Fort Worth, TX.
- Published
- 2024
- Full Text
- View/download PDF
27. Incorporating Velopharyngeal MRI into the Clinical Decision-Making Process for a Patient Presenting with Velopharyngeal Dysfunction Following a Failed Palatoplasty.
- Author
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Mason KN and Black J
- Subjects
- Humans, Female, Clinical Decision-Making, Child, Treatment Failure, Velopharyngeal Insufficiency surgery, Velopharyngeal Insufficiency diagnostic imaging, Velopharyngeal Insufficiency physiopathology, Magnetic Resonance Imaging methods, Cleft Palate surgery, Cleft Palate diagnostic imaging
- Abstract
This clinical report describes the implementation of magnetic resonance imaging (MRI) to evaluate a patient with long-standing velopharyngeal dysfunction. She was referred to the craniofacial clinic at age 10 with no prior surgical history and subsequently completed a Furlow palatoplasty due to a suspected submucous cleft palate. However, results were unfavorable with minimal improvement in speech or resonance. The clinical presentation, treatment, outcomes, and contributions from MRI for secondary surgical planning are described. Addition of MRI into the clinical workflow provided insights into the anatomy and physiology of the velopharyngeal mechanism that were unable to be obtained from nasendoscopy and speech evaluation alone., Competing Interests: Declaration of Conflicting InterestsThe author(s) of this manuscript have no conflicts of interest to disclose with respect to the research, authorship, and/or publication of this article. This study was approved by the University of Virginia Institutional Review Board (IRB-HSR#200333).
- Published
- 2024
- Full Text
- View/download PDF
28. Achieving Clinical Success in Nonsedated Velopharyngeal MRI: Insights for Optimal Data Quality & Effective Patient Selection.
- Author
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Mason KN, Gampper T, and Black J
- Abstract
Background: The ability of MRI for in vivo visualization of the velopharyngeal (VP) musculature makes it the only imaging modality for this purpose. This underscores a need for exploration into clinical translation of this imaging modality on craniofacial teams. The purpose of this study was to assess outcomes of a clinically feasible VP MRI protocol and describe the ideal patient population for utilization of this imaging protocol., Methods: Sixty children (2-12 years) with velopharyngeal insufficiency (VPI) underwent a nonsedated, child-friendly MRI protocol. No exclusions based on syndromic conditions were made. Logistic regression assessed predictors of VP MRI success and multinomial logistic regression evaluated factors influencing quality of anatomic data., Results: An 85% overall success rate was achieved, including children as young as two and those with syndromic diagnoses. Stratifying by age revealed a 97.5% success rate in children ages four and up. The regression model [χ2(5) = 37.443, p < 0.001] explained 81.4% of success rate variance, correctly classifying 93.3% of cases. Increased age significantly predicted success (p=0.046), while sex and syndromic conditions did not. Multinomial regression identified preparatory materials (p=0.011) and audio/video during the scan (p=0.024) as predictors for improved image quality., Conclusions: Implementation of VP MRI is feasible for a broad population of children with VPI, including those with concomitant syndromic diagnoses. Quality is improved by incorporating pre-scan preparation and audio/visual stimuli during scans. This underscores the potential of VP MRI as a valuable tool in clinical settings, especially for pre-surgical assessments., Competing Interests: Conflict of Interest Declaration: The authors of this manuscript have no conflicts of interest to disclose with respect to the research, authorship, and/or publication of this article. This study was approved by the University of Virginia Institutional Review Board (IRB-HSR#200333, 210529)., (Copyright © 2024 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of the American Society of Plastic Surgeons. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF
29. Magnetic Resonance Imaging for Assessing Velopharyngeal Function: Current Applications, Barriers, and Potential for Future Clinical Translation in the United States.
- Author
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Mason KN
- Subjects
- Child, Humans, United States, Surveys and Questionnaires, Magnetic Resonance Imaging methods, Velopharyngeal Insufficiency diagnostic imaging
- Abstract
Objective: The use of magnetic resonance imaging (MRI) in the assessment process for children with cleft/craniofacial conditions remains uncommon, particularly for velopharyngeal assessments. The purpose of this study was to analyze the perceived clinical utility of MRI for cleft/craniofacial providers and identify barriers that exist for clinical translation of this imaging modality to this population of patients., Methods: A 38-item survey was disseminated to craniofacial team providers. Workplace context and demographics, MRI as a research and clinical tool, access and barriers for use of MRI, and needs for successfully establishing MRI protocols at clinical sites were investigated. Descriptive statistics were used to identify differences in the clinical use of MRI across disciplines. Chi-square analyses were conducted to determine how different specialties perceived potential barriers., Results: Respondents reported that MRI is likely to be beneficial for clinical assessments (93.5%) and that this imaging modality is available for use (83.8%). However, only 11.8% of providers indicated the use of MRI in their clinical assessments. This discrepancy highlights a potential disconnect between perceived use and implementation of this imaging methodology on cleft and craniofacial teams. A number of barriers were identified by providers. Challenges and opportunities for clinical translation of MRI protocols were highlighted., Conclusion: Results may guide the development for improved clinical feasibility and implementation of MRI for clinical planning in this population of patients. Reported barriers highlight additional areas for translational research and the potential for the development of clinical tools related to MRI assessment and protocol implementation., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2024
- Full Text
- View/download PDF
30. Simulation of Velopharyngeal Biomechanics Identifies Differences in Sphincter Pharyngoplasty Outcomes: A Matched Case-Control Study.
- Author
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Tran T, Perry J, Blemker S, and Mason K
- Subjects
- Humans, Case-Control Studies, Biomechanical Phenomena, Treatment Outcome, Pharynx surgery, Computer Simulation, Velopharyngeal Insufficiency surgery
- Abstract
The purpose of this study was to develop a framework for 3D subject-specific computational models capable of simulating velopharyngeal biomechanics for anatomic changes that occur following pharyngoplasty and to gain insight into biomechanical factors that may lead to different speech/surgical outcomes. Patient-specific models for two, matched participants with differing speech/surgical outcomes were developed: one with a successful pharyngoplasty outcome and one with a failed pharyngoplasty outcome. Surgical scenarios were simulated to model pharyngoplasty location, identify LVP muscle biomechanics, and identify an optimal pharyngoplasty location for each participant. These simulations illustrate the potential for optimizing pharyngoplasties based on patient-specific geometry., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2024
- Full Text
- View/download PDF
31. Utilization of 3D MRI for the Evaluation of Sphincter Pharyngoplasty Insertion Site in Patients With Velopharyngeal Dysfunction.
- Author
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Mason KN, Riski JE, Williams JK, Jones RA, and Perry JL
- Subjects
- Humans, Prospective Studies, Cicatrix, Speech, Treatment Outcome, Pharynx diagnostic imaging, Pharynx surgery, Magnetic Resonance Imaging, Retrospective Studies, Velopharyngeal Insufficiency diagnostic imaging, Velopharyngeal Insufficiency surgery, Contracture, Cleft Palate diagnostic imaging, Cleft Palate surgery
- Abstract
Sphincter pharyngoplasty is a surgical method to treat velopharyngeal dysfunction. However, surgical failure is often noted and postoperative assessment frequently reveals low-set pharyngoplasties. Past studies have not quantified pharyngoplasty tissue changes that occur postoperatively and gaps remain related to the patient-specific variables that influence postoperative change. The purpose of this study was to utilize advanced three-dimensional imaging and volumetric magnetic resonance imaging (MRI) data to visualize and quantify pharyngoplasty insertion site and postsurgical tissue changes over time., A prospective, repeated measures design was used for the assessment of craniometric and velopharyngeal variables postsurgically. Imaging was completed across two postoperative time points. Tissue migration, pharyngoplasty dimensions, and predictors of change were analyzed across imaging time points., Significant differences were present between the initial location of pharyngoplasty tissue and the pharyngoplasty location 2 to 4 months postoperatively. The average postoperative inferior movement of pharyngoplasty tissue was 6.82 mm, although notable variability was present across participants. The pharyngoplasty volume decreased by 30%, on average., Inferior migration of the pharyngoplasty tissue was present in all patients. Gravity, scar contracture, and patient-specific variables likely interact, impacting final postoperative pharyngoplasty location. The use of advanced imaging modalities, such as 3D MRI, allows for the quantification and visualization of tissue change. There is a need for continued identification of patient-specific factors that may impact the amount of inferior tissue migration and scar contracture postoperatively.
- Published
- 2022
- Full Text
- View/download PDF
32. Does the Type of MRI Sequence Influence Perceived Quality and Measurement Consistency in Investigations of the Anatomy of the Velopharynx?
- Author
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Perry JL, Haenssler AE, Kotlarek KJ, Chen JY, Fang X, Guo Y, Mason K, and Webb M
- Subjects
- Humans, Reproducibility of Results, Magnetic Resonance Imaging methods
- Abstract
Purpose: The purpose of this study was to evaluate perceived image quality, confidence in identifying key velopharyngeal landmarks, and reliability of making velopharyngeal measures between 3-dimensional (3-D) and 2-D magnetic resonance imaging (MRI) methods and between T1-, T2-, and proton density (PD)-weighted sequences., Methods: Twelve healthy participants completed an MRI study. Three raters assessed overall image quality and their ability to identify key anatomic features within the images. A single rater evaluated the reliability of making measures between imaging methods and sequence types to determine if image type (2-D and 3-D) or image sequence (T1, T2, PD weighted) resulted in different values for key velopharyngeal landmarks., Results: An analysis of variance test revealed image quality was rated significantly different based on the scan type ( P < .001) and the sequence used ( P = .015). Image quality was rated higher among 2-D MR images compared to 3-D, and higher among T2 sequences compared to T1- and PD-weighted imaging methods. In contrast, raters favored 3-D sequences over 2-D sequences for identifying velopharyngeal landmarks. Measures of reliability revealed scan type significantly impacted 2 of the 6 variables but to a minimal degree; however, sequence type had no impact on measures of reliability across all variables., Conclusion: Results of the study suggest the scan type and sequence used are factors that likely do not impact the reliability of measures. Based on image quality, the recommended technique for velopharyngeal imaging would be using a 2-D T2-weighted technique. However, based on the ability to identify key landmarks, a 3-D T1- or PD-weighted technique was favored.
- Published
- 2022
- Full Text
- View/download PDF
33. Can Dynamic MRI Be Used to Accurately Identify Velopharyngeal Closure Patterns?
- Author
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Perry JL, Mason K, Sutton BP, and Kuehn DP
- Subjects
- Adult, Female, Humans, Male, Reproducibility of Results, Young Adult, Endoscopy methods, Magnetic Resonance Imaging methods, Speech Disorders physiopathology, Velopharyngeal Insufficiency diagnostic imaging, Velopharyngeal Insufficiency physiopathology
- Abstract
Background: Dynamic magnetic resonance imaging (MRI) has been proposed as a non-invasive, child-friendly, reproducible, and repeatable imaging method providing a 3-dimensional view of the velopharyngeal structures and function during speech. However, the value of dynamic MRI as compared to imaging methods such as nasopharyngoscopy is not well understood. The aim of this study was to compare the ability of nasopharyngoscopy and dynamic MRI to accurately identify velopharyngeal closure patterns among adults without cleft palate., Methods: Participants included 34 healthy adults with normal anatomy between 19 and 33 years of age (mean = 23 years; SD = 4.1 years). Participants underwent dynamic MRI and nasopharyngoscopy studies and comparisons were performed to determine the intra- and inter-rater reliability for accurately determining closure pattern. The MRI acquisition was a dynamic acquisition of a 2D plane., Results: Strong inter- (κ = .824; P < .001) and intra-rater (Rater 1: κ = 0.879, P < .001, 94% agreement between ratings; Rater 2 with 100% agreement) agreement was observed for the identification of closure pattern using nasopharyngoscopy. Inter-rater agreement for ratings using MRI demonstrated moderate agreement (κ = .489; P < .004). Examining point agreement revealed only 27 of the 33 ratings of MRI showed agreement (80%)., Conclusion: This demonstrates that inter-rater reliability for determining closure patterns from nasopharyngoscopy is good; however, ratings using MRI was less reliable at determining closure patterns. It is likely that future improvements in dynamic imaging with MRI to enable 3D visualizations are needed for improved diagnostic accuracy for assessing velopharyngeal closure patterns.
- Published
- 2018
- Full Text
- View/download PDF
34. Changes in the Height of Velopharyngeal Closure Relative to the Cervical Spine From Infancy Through Adolescence in Patients With Cleft Palate.
- Author
-
Mason KN, Riski JE, and Perry JL
- Subjects
- Adolescent, Anatomic Landmarks, Cephalometry, Child, Child, Preschool, Cross-Sectional Studies, Female, Humans, Infant, Male, Retrospective Studies, Young Adult, Cervical Vertebrae anatomy & histology, Cervical Vertebrae diagnostic imaging, Cleft Palate diagnostic imaging, Cleft Palate surgery, Plastic Surgery Procedures methods, Velopharyngeal Insufficiency diagnostic imaging, Velopharyngeal Insufficiency surgery
- Abstract
Objective: Palpation is often used to identify C1, an intraoperative landmark, for placement of the pharyngoplasty. However, little is known about the relationship between the palatal plane (PP) and this cervical spine landmark across select variables. This study seeks to analyze variations in the height of velopharyngeal closure relative to C1 across differing cleft types and age groups., Design: Retrospective, cross-sectional analysis., Setting: Large, multidisciplinary center for craniofacial disorders., Methods: Clinical lateral cephalograms were analyzed in nonsyndromic patients who underwent primary palatoplasty. Regression analysis and analysis of covariance were completed to determine how age and cleft type impact underlying cervical and velopharyngeal measures., Results: Age ( P < .001) and cleft type ( P = .036) were significant predictors of the distance between the height of velopharyngeal closure and C1. Those with greater severity of clefting demonstrated larger distances between the height of velopharyngeal closure and C1. Compared to normative data, children with cleft palate have significantly larger distances between the PP and C1. The height of velopharyngeal closure above C1 was observed to range from 3.6 to 12.6 mm across cleft populations., Conclusions: This study demonstrates the variability in C1 as a landmark across variables including cleft type and age. Because of differences in the height of velopharyngeal closure across cleft types relative to C1, it is necessary to preoperatively quantify the vertical distance between the PP and palpable intraoperative landmark, C1, to determine the appropriate height of pharyngoplasty insertion.
- Published
- 2018
- Full Text
- View/download PDF
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