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1,044 results on '"CT imaging -- Methods"'

1. Comparing the Performance of Scatter Correction Methods in Cardiac SPECT Imaging with Technetium-99m and Thallium-201 Radioisotopes

Author

Noori-Asl, Mahsa and Eghbal, Maryam

Subjects
Imaging technology, SPECT imaging -- Methods, CT imaging -- Methods, Imaging systems -- Methods, Simulation methods -- Methods
Abstract

Purpose: This study aims to evaluate the performance of dual-energy window (DEW) and triple-energy window (TEW) scatter correction methods in cardiac SPECT imaging with technetium-99m (Tc-99m) and thallium-201 (Tl-201) radioisotopes. Materials and Methods: The SIMIND Monte Carlo program was used to simulate the imaging system and produce the required projections. Two phantoms, including the simple cardiac phantom and the NCAT phantom, were used to evaluate the scatter correction methods. The simulations were repeated 5 times for each phantom and finally, the mean values obtained from these 5 tests were used in the analysis of the results. Results: The obtained results from this study show that in the case of both investigated phantoms, the use of correction methods leads to improve the contrast of the images obtained from Tc-99m and Tl-201 radioisotopes. In the case of the simple cardiac phantom, the use of DEW and TEW correction methods leads to a relative increase in image contrast of about 23.88% and 12.23% for [sup.99m]Tc radioisotope and about 29.19% and 20.98% for [sup.201]Tl radioisotope, respectively. This relative increase in the case of the NCAT phantom is about 22.48% and 19.43% for [sup.99m]Tc radioisotope and about 27.74% and 24.74% for [sup.201]Tl radioisotope, respectively. Conclusion: According to the obtained results, despite the higher contrast of the noncorrected images of [sup.99m]Tc radioisotope, the relative increase in contrast of the corrected images of [sup.201]Tl radioisotope is more than that of [sup.99m]Tc radioisotope. Furthermore, for both radioisotopes, the relative increase related to the DEW method is higher than the TEW method. Keywords: Energy window, image contrast, scatter correction, single-photon emission computed tomography (SPECT), technetium-99m, thallium-201, Author(s): Mahsa Noori-Asl (corresponding author) [1]; Maryam Eghbal [1] INTRODUCTION Thallium-201 (Tl-201) and technetium-99m (Tc-99m) are two commonly used radioisotopes in cardiac SPECT imaging.[sup.[1]] Tl-201 is generated by a cyclotron [...]

Published
2024
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2. Researchers Submit Patent Application, 'Radiotherapy System And Method For Controlling Radiotherapy System', for Approval (USPTO 20240350830)

Subjects
Electronics industry, Electronics industry -- Intellectual property, CT imaging -- Methods, Radiotherapy -- Methods, Physical fitness -- Methods, Toshiba Corp. -- Intellectual property
Abstract

2024 NOV 16 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- From Washington, D.C., NewsRx journalists report that a patent application by the [...]

Published
2024

3. Researchers Submit Patent Application, 'Systems And Methods For Motion Correction For A Medical Image', for Approval (USPTO 20240346628)

Subjects
SPECT imaging -- Methods, CT imaging -- Methods, Medical imaging equipment -- Intellectual property -- Methods, Physical fitness -- Methods
Abstract

2024 NOV 9 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- From Washington, D.C., NewsRx journalists report that a patent application by the [...]

Published
2024

4. Data on Lung Cancer Reported by Researchers at Technical University of Malaysia Malacca (Analyzing Ct Images for Detecting Lung Cancer By Applying the Computational Intelligence-based Optimization Techniques)

Subjects
Oncology, Experimental -- Methods, Cancer -- Diagnosis -- Research, Mathematical optimization -- Methods, Lung cancer -- Methods, CT imaging -- Methods, Physical fitness -- Methods, Health
Abstract

2024 NOV 2 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- Current study results on Oncology - Lung Cancer have been published. According [...]

Published
2024

5. Clinical characteristics and treatment outcomes of patients with IgG4-positive ocular adnexal marginal zone B-cell lymphoma

Author

Yang, Yu, Jin, Xuelian, Xu, Manhua, and He, Weimin

Subjects
Non-Hodgkin's lymphomas -- Care and treatment -- Patient outcomes -- Diagnosis, Immunoglobulin G -- Health aspects, CT imaging -- Methods
Abstract

Purpose: To explore the clinicopathological characteristics of immunoglobulin G4 (IgG4)-positive ocular adnexal marginal zone B-cell lymphoma (OAML) and associated patient treatment outcomes. Methods: Medical records from patients diagnosed with IgG4-positive OAML treated at the West China Hospital between January 2016 and August 2023 were retrospectively analyzed. Results: This study included data from 22 patients (11 males, 11 females), aged between 36 and 83 years, with disease durations from 1 month to 30 years. Sixteen cases exhibited unilateral ocular involvement (ten left eyes, six right eyes), while six exhibited bilateral involvement. Common clinical symptoms included ocular masses, eyelid swelling, and proptosis, with the orbit and lacrimal gland being the most commonly impacted sites. Among the 22 patients, 13 who were clinically suspected of having IgG4-related ophthalmic disease (IgG4-ROD) underwent serum IgG4 testing pre-operatively, revealing elevated IgG4 levels in 11 of these patients. The use of computed tomography and magnetic resonance imaging facilitated the evaluation of the location and size of lesions. All 22 patients received surgical treatment. Subsequently, 14 of these patients underwent local radiotherapy, five received post-operative chemotherapy, and three were closely observed. The follow-up period of patients in this study was 3-77 months, with an average follow-up time of 36 months. Except for one patient who died of disease progression, all others showed favorable prognoses with significant improvements. Conclusions: These results support the classification of IgG4-positive OAML as a distinct OAML sub-type with clinical features that partially overlap with IgG4-ROD. Therefore, accurate differentiation between OAML and IgG4-ROD is imperative, necessitating timely surgical intervention and precise pathological diagnosis to prevent diagnostic errors and inappropriate treatment. Currently, no standardized treatments for IgG4-positive OAML exist, but our results suggest that standard OAML therapies are generally efficacious. Keywords: Clinical characteristics, IgG4, marginal zone B-cell lymphoma, ocular adnexa, treatment outcomes, Author(s): Yu Yang [1]; Xuelian Jin [2]; Manhua Xu [3]; Weimin He (corresponding author) [1] Ocular adnexal marginal zone B-cell lymphoma (OAML), which predominantly involves the orbit, lacrimal gland, conjunctiva, [...]

Published
2024
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6. Reports Outline Sensor Research Research from Huazhong University of Science and Technology (ACSwinNet: A Deep Learning-Based Rigid Registration Method for Head-Neck CT-CBCT Images in Image-Guided Radiotherapy)

Subjects
Sensors -- Methods, CT imaging -- Methods, Radiotherapy -- Methods, Physical fitness -- Methods, Health
Abstract

2024 SEP 14 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- Data detailed on sensor research have been presented. According to news reporting [...]

Published
2024

7. Researchers Submit Patent Application, 'Apparatus And Method With Dynamic Interface For Mechanical, Selective Weed Control In Crops Including Turfgrasses', for Approval (USPTO 20240245045)

Subjects
Plants -- Methods, Agricultural industry -- Intellectual property, CT imaging -- Methods, Physical fitness -- Methods, Health
Abstract

2024 AUG 17 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- From Washington, D.C., NewsRx journalists report that a patent application by the [...]

Published
2024

10. Data on Radiotherapy Described by Researchers at Yonsei University (Development of Learning-based Online C-arm Ct Imaging Technique for Image-guided Adaptive Brachytherapy)

Subjects
CT imaging -- Methods, Physical fitness -- Methods, Radioisotope brachytherapy -- Methods, Diagnostic imaging -- Methods, Health, Yonsei University
Abstract

2024 JUL 6 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- A new study on Drugs and Therapies - Radiotherapy is now available. [...]

Published
2024

11. 'System And Method For Medical Imaging' in Patent Application Approval Process (USPTO 20240185487)

Subjects
Machine learning -- Methods, CT imaging -- Methods, Physical fitness -- Methods, Scanning devices -- Intellectual property -- Methods, Diagnostic imaging -- Methods, Health
Abstract

2024 JUN 29 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- A patent application by the inventors AVERBUCH, Dorian (Campbell, CA, US); SEZGANOV, [...]

Published
2024

13. Research on Lung Cancer Reported by a Researcher at State Key Laboratory of Oncology in South China (A novel evaluation model of image registration for cone-beam computed tomography guided lung cancer radiotherapy)

Subjects
Lung cancer -- Care and treatment, CT imaging -- Methods, Radiotherapy -- Methods, Health
Abstract

2024 MAY 25 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- Investigators discuss new findings in lung cancer. According to news reporting out [...]

Published
2024

14. Findings on Abdominal Injury Discussed by Investigators at Pusan National University Hospital (Analysis of Factors To Determine Treatment Methods for Abdominal Stab Wound Patients With Peritoneal Breach According To the Results of Diagnostic ...)

Subjects
Laparotomy -- Methods, Peritoneal cavity -- Care and treatment, CT imaging -- Methods, Wounds and injuries -- Care and treatment, Health
Abstract

2024 MAY 25 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- Data detailed on Gastrointestinal Diseases and Conditions - Abdominal Injury have been [...]

Published
2024

16. Report Summarizes Liver Cancer Study Findings from North Sichuan Medical College (Computed Tomography-guided Percutaneous Cryoablation and Microwave Ablation In the Treatment of Perivascular Hepatocellular Carcinoma: a Comparative Study With ...)

Subjects
Ablation (Surgery) -- Methods, CT imaging -- Methods, Hepatoma -- Care and treatment, Health
Abstract

2024 MAY 11 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- Data detailed on Oncology - Liver Cancer have been presented. According to [...]

Published
2024

17. Research from NITTE (Deemed to be University) Provide New Insights into Pharmaceutical Research and Healthcare (Estimation of Entrance Surface Radiation Dose to Thyroid and Gonads during Computed Tomography Thorax Examination)

Subjects
Chest -- Medical examination, Radiation dosimetry -- Comparative analysis -- Physiological aspects, CT imaging -- Methods, Health
Abstract

2024 APR 20 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- Data detailed on pharmaceutical research and healthcare have been presented. According to [...]

Published
2024

20. Third Affiliated Hospital of Soochow University Researchers Describe Recent Advances in Lung Cancer (Transfer learning-based PET/CT three-dimensional convolutional neural network fusion of image and clinical information for prediction of EGFR ...)

Subjects
Gene mutations -- Analysis, PET imaging -- Methods, Lung cancer -- Genetic aspects -- Development and progression, CT imaging -- Methods, Neural networks -- Methods, Neural network, Health
Abstract

2024 MAR 23 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- Research findings on lung cancer are discussed in a new report. According [...]

Published
2024

21. University of Glasgow Researcher Reports Recent Findings in Colon Cancer (The Relationship between Liver Volume, Clinicopathological Characteristics and Survival in Patients Undergoing Resection with Curative Intent for Non-Metastatic Colonic ...)

Subjects
Colon cancer -- Prognosis -- Care and treatment -- Diagnosis, Liver -- Medical examination, CT imaging -- Methods, Health
Abstract

2024 MAR 23 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- Investigators discuss new findings in colon cancer. According to news reporting out [...]

Published
2024

22. Data on Cardiovascular Imaging Described by a Researcher at Harbor-University of California Los Angeles Medical Center (Closing the Last Mile Gap in Access to Multimodality Imaging in Rural Settings: Design of the Imaging Core of the Risk ...)

Subjects
Echocardiography -- Methods, CT imaging -- Methods, Ambulatory medical care -- Technology application, Rural health services -- Technology application, Technology application, Health
Abstract

2024 MAR 16 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- Investigators discuss new findings in cardiovascular imaging. According to news reporting from [...]

Published
2024

24. 'System And Method For Telematics Accounts On-The-Ground Safety' in Patent Application Approval Process (USPTO 20240362990)

Subjects
Telematics -- Methods -- Intellectual property, Emergency medical services -- Methods -- Intellectual property, CT imaging -- Methods, Health, Social sciences
Abstract

2024 NOV 18 (NewsRx) -- By a News Reporter-Staff News Editor at Bioterrorism Week -- A patent application by the inventors Samela, III, Joseph M. (Bristol, CT, US); Turner, David [...]

Published
2024

25. PUBLIC NON-COMMERCIAL ENTERPRISE CENTRAL CITY CLINICAL HOSPITAL OF SUMY CITY COUNCIL invites tenders for Services of Examination of Patients by the Method of Computed Tomography (Dk 021:2015 85150000-5 Services of Diagnostic Imaging)

Subjects
City councils -- Methods, CT imaging -- Methods, News, opinion and commentary
Abstract

PUBLIC NON-COMMERCIAL ENTERPRISE CENTRAL CITY CLINICAL HOSPITAL OF SUMY CITY COUNCIL, Ukraine has invited tenders for Services of Examination of Patients by the Method of Computed Tomography (Dk 021:2015 85150000-5 [...]

Published
2024

26. UTILITY STATE ENTERPRISE REGIONAL CLINICAL HOSPITAL OF THE HEALTH CARE DEPARTMENT OF THE KARAGANDA REGION invites tenders for Training of Doctors on the Topic: Current Issues of Radiation Methods for Studying Organs and Systems (X-Ray, Ct, Mri, Ultrasound

Subjects
Physicians -- Methods -- Training, CT imaging -- Methods, Government business enterprises -- Methods -- Training, Diagnostic imaging -- Methods, News, opinion and commentary
Abstract

UTILITY STATE ENTERPRISE REGIONAL CLINICAL HOSPITAL OF THE HEALTH CARE DEPARTMENT OF THE KARAGANDA REGION, Kazakhstan has invited tenders for Training of Doctors on the Topic: Current Issues of Radiation [...]

Published
2024

27. Study Findings on Prostate Cancer Are Outlined in Reports from Tokyo Medical and Dental University (TMDU) [Phase I/iia Trial of 18f-prostate Specific Membrane Antigen (Psma) 1007 Pet/ct In Healthy Volunteers and Prostate Cancer

Subjects
Oncology, Experimental, Prostate cancer -- Diagnosis, Prostate-specific antigen -- Testing, PET imaging -- Methods, CT imaging -- Methods, Cancer -- Research, Radioactive tracers -- Testing, Health
Abstract

2024 JAN 13 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- Current study results on Oncology - Prostate Cancer have been published. According [...]

Published
2024

29. Cone-beam computed tomography (CBCT) dose optimization technique and image quality assessment scoring

Author

Trivedi, Gaurav, Singh, Pushpendra, Oinam, Arun, and Singh, Ranjit

Subjects
Medical research -- Methods, Medicine, Experimental -- Methods, Mathematical optimization -- Methods, CT imaging -- Methods, Radiotherapy -- Methods, Health
Abstract

Byline: Gaurav. Trivedi, Pushpendra. Singh, Arun. Oinam, Ranjit. Singh Introduction: Linear accelerator (LINAC) embedded with kV source-imager system is capable to do image-guided radiotherapy. The only disadvantage of cone-beam computed [...]

Published
2024

32. Researchers Submit Patent Application, 'Methods And Systems For Controlling Image-Guided Interventional Puncture Devices', for Approval (USPTO 20240350211)

Subjects
Robotics industry, Robot, Medical equipment -- Methods, Robotics industry -- Methods, Robots -- Methods, Physiological apparatus -- Methods, CT imaging -- Methods
Abstract

2024 NOV 17 (NewsRx) -- By a News Reporter-Staff News Editor at Medical Devices & Surgical Technology Week -- From Washington, D.C., NewsRx journalists report that a patent application by [...]

Published
2024

36. 'System And Method For Location Insensitive Reporting Of Fractional Flow Reserve-Computed Tomography For A Given Stenosis' in Patent Application Approval Process (USPTO 20240346644)

Subjects
CT imaging -- Methods, Imaging systems -- Methods -- Intellectual property, Imaging technology, Health
Abstract

2024 NOV 8 (NewsRx) -- By a News Reporter-Staff News Editor at Health & Medicine Week -- A patent application by the inventor Venugopal, Prem (Clifton Park, NY, US), filed [...]

Published
2024

37. Patent Issued for Method of calibrating x-ray projection geometry in x-ray cone beam computed tomography (USPTO 12115017)

Subjects
Machine learning -- Methods, CT imaging -- Methods, Dental equipment and supplies industry -- Intellectual property, Dentsply Sirona Inc. -- Intellectual property
Abstract

2024 NOV 8 (NewsRx) -- By a News Reporter-Staff News Editor at Medical Patent Business Week -- According to news reporting originating from Alexandria, Virginia, by NewsRx journalists, a patent [...]

Published
2024

39. Patent Application Titled 'Breast Compression And Imaging Systems And Methods' Published Online (USPTO 20240341703)

Subjects
Imaging technology, Medical test kit industry -- Intellectual property, Medical equipment and supplies industry -- Intellectual property, CT imaging -- Methods, Imaging systems -- Methods -- Intellectual property, Hologic Inc. -- Intellectual property
Abstract

2024 NOV 8 (NewsRx) -- By a News Reporter-Staff News Editor at Health & Medicine Week -- According to news reporting originating from Washington, D.C., by NewsRx journalists, a patent [...]

Published
2024

40. Patent Issued for Data transmission device, medical imaging device and method for transmitting data packets (USPTO 12113722)

Subjects
Siemens Healthineers AG -- Intellectual property, Medical test kit industry -- Intellectual property, Medical equipment and supplies industry -- Intellectual property, CT imaging -- Methods, Diagnostic imaging -- Methods, Health
Abstract

2024 NOV 1 (NewsRx) -- By a News Reporter-Staff News Editor at Health & Medicine Week -- A patent by the inventors Karl, Harald (Fuerth, DE), Kiesel, Jutta (Forchheim, DE), [...]

Published
2024

41. Patent Issued for Computed tomography (CT) machine system and state monitoring method (USPTO 12109055)

Subjects
Siemens Healthineers AG -- Intellectual property, Medical test kit industry -- Intellectual property, Medical equipment and supplies industry -- Intellectual property, Machine learning -- Methods, CT imaging -- Methods, Health
Abstract

2024 NOV 1 (NewsRx) -- By a News Reporter-Staff News Editor at Health & Medicine Week -- According to news reporting originating from Alexandria, Virginia, by NewsRx journalists, a patent [...]

Published
2024

42. Researchers Submit Patent Application, 'Modulators Of Bcl6 Proteolysis And Associated Methods Of Use', for Approval (USPTO 20240335444)

Subjects
Proteolysis -- Methods, Protein-protein interactions -- Methods, Enzymes -- Methods -- Intellectual property, CT imaging -- Methods, Business, Health
Abstract

2024 NOV 1 (NewsRx) -- By a News Reporter-Staff News Editor at Medical Patent Business Week -- From Washington, D.C., NewsRx journalists report that a patent application by the inventors [...]

Published
2024

45. 'Method For Providing Trigger Information In Medical Radiology' in Patent Application Approval Process (USPTO 20240324972)

Subjects
Siemens Healthineers AG -- Intellectual property, Radiology -- Methods, Medical test kit industry -- Intellectual property, Medical equipment and supplies industry -- Intellectual property, CT imaging -- Methods, Radiology, Medical -- Methods, Health
Abstract

2024 OCT 25 (NewsRx) -- By a News Reporter-Staff News Editor at Health & Medicine Week -- A patent application by the inventor HOFMANN, Christian (Erlangen, DE), filed on March [...]

Published
2024

46. New Findings Reported from Annamacharya Institute of Technology and Sciences Describe Advances in Lung Cancer (An integrated method for detecting lung cancer via CT scanning via optimization, deep learning, and IoT data transmission)

Subjects
Oncology, Experimental -- Methods, Cancer -- Diagnosis -- Research, Lung cancer -- Methods, CT imaging -- Methods, Business, Health, Health care industry
Abstract

2024 OCT 22 (NewsRx) -- By a News Reporter-Staff News Editor at Cancer Weekly -- Data detailed on lung cancer have been presented. According to news originating from Andhra Pradesh, [...]

Published
2024

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