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Evaluation of Osseous Morphology of the Hip Using Zero Echo Time Magnetic Resonance Imaging
- Source :
- The American journal of sports medicine. 47(14)
- Publication Year :
- 2019
-
Abstract
- Background: Femoroacetabular impingement syndrome (FAIS) is a common disorder of the hip resulting in groin pain and ultimately osteoarthritis. Radiologic assessment of FAI morphologies, which may present with overlapping radiologic features of hip dysplasia, often requires the use of computed tomography (CT) for evaluation of osseous abnormality, owing to the difficulty of direct visualization of cortical and subchondral bone with conventional magnetic resonance imaging (MRI). The use of a zero echo time (ZTE) MRI pulse sequence may obviate the need for CT by rendering bone directly from MRI. Purpose/Hypothesis: The purpose was to explore the application of ZTE MRI to the assessment of osseous FAI and dysplasia morphologies of the hip. It was hypothesized that angular measurements from ZTE images would show significant agreement with measurements obtained from CT images. Study Design: Cohort study (diagnosis); Level of evidence, 2. Methods: Thirty-eight hips from 23 patients were imaged with ZTE MRI and CT. Clinically relevant angular measurements of hip morphology were made in both modalities and compared to assess agreement. Measurements included coronal and sagittal center-edge angles, femoral neck-shaft angle, acetabular version (at 1-, 2-, and 3-o’clock positions), Tönnis angle, alpha angle, and modified-beta angle. Interrater agreement was assessed for a subset of 10 hips by 2 raters. Intermodal agreement was assessed on the complete cohort and a single rater. Results: Interrater agreement was demonstrated in both CT and ZTE, with intraclass correlation coefficient values ranging from 0.636 to 0.990 for ZTE and 0.747 to 0.983 for CT, indicating “good” to “excellent” agreement. Intermodal agreement was also shown to be significant, with intraclass correlation coefficients ranging from 0.618 to 0.904. Conclusion: Significant agreement of angular measurements for hip morphology exists between ZTE MRI and CT imaging. ZTE MRI may be an effective method to quantitatively evaluate osseous hip morphology.
- Subjects :
- Adult
Male
Physical Therapy, Sports Therapy and Rehabilitation
Osteoarthritis
030218 nuclear medicine & medical imaging
Cohort Studies
03 medical and health sciences
0302 clinical medicine
Imaging, Three-Dimensional
medicine
Femoracetabular Impingement
Humans
Orthopedics and Sports Medicine
Femoroacetabular impingement
030222 orthopedics
Hip
medicine.diagnostic_test
Groin
Femoroacetabular Impingement Syndrome
business.industry
Femur Neck
Echo time
Magnetic resonance imaging
Acetabulum
Femur Head
Middle Aged
medicine.disease
Magnetic Resonance Imaging
medicine.anatomical_structure
Female
Hip Joint
business
Nuclear medicine
Tomography, X-Ray Computed
Subjects
Details
- ISSN :
- 15523365
- Volume :
- 47
- Issue :
- 14
- Database :
- OpenAIRE
- Journal :
- The American journal of sports medicine
- Accession number :
- edsair.doi.dedup.....4a6d772048b64c1ab05cf5b5d73b00da