Purpose: To validate the effects of subject position on single energy metal artifact reduction (SEMAR) of a reverse shoulder prosthesis using computed tomography (CT).
Methods: A water phantom with a reverse shoulder prosthesis was scanned at four positions on the XY plane of the CT gantry (on-center, 50 mm, 100 mm, and 150 mm from on-center in the negative direction of the X axis, respectively). We obtained images with and without SEMAR. The artifact index (AI) was measured via physical assessment. Scheffé's (Ura) paired comparison methods were performed with the amount of metal artifact by ten radiological technologists via visual assessment.
Results: The AI was significantly reduced when using SEMAR. As the phantom moved away from the on-center position, the AI increased, and metal artifacts increased in Scheffé's methods.
Conclusion: SEMAR reduces metal artifacts of a reverse shoulder prosthesis, but metal artifacts may increase as the subject position moves away from the on-center position.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.6009/jjrt.2024-1456 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Convertible metal-backed glenoid in total shoulder arthroplasty.
Bone Jt Open
January 2025
Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.
Aims: The aim of this study was to report long-term clinical outcomes of a modern convertible metal-backed glenoid (MBG) in total shoulder arthroplasty (TSA).
Methods: After a minimum of 15 years, a previously studied cohort of 35 patients who received a modern convertible MBG during the period 1996 to 2005 was contacted for clinical and radiological follow-up. At last follow-up, patients were evaluated radiologically and clinically according to the Constant Score, Simple Shoulder Test, and visual analogue scale for pain.
Surgical Interventions for Rotator Cuff Tears: A Comprehensive Literature Review.
Cureus
December 2024
Trauma and Orthopedics, Medway Maritime Hospital, Gillingham, GBR.
Rotator cuff tears in the shoulder joint are common musculoskeletal injuries that may present with or without symptoms. Rotator cuff tears are a common musculoskeletal condition that become increasingly prevalent with age. This mines various surgical interventions for rotator cuff tears, focusing on patient selection criteria and treatment outcomes across different subgroups.
View Article and Find Full Text PDFDiagnosing Mycobacterium Kansasii in Shoulder Periprosthetic Joint Infection: A Rare Case Report.
J Orthop Case Rep
January 2025
Department of Orthopedics, University of Illinois College of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA.
Introduction: Periprosthetic joint infections (PJIs) of the shoulder complicate approximately 0.7% of primary and 15.4% of revision shoulder arthroplasties.
View Article and Find Full Text PDF5-Year Mortality After Complex Displaced Proximal Humerus Fractures in Elderly Patients: Conservative Versus Reverse Total Shoulder Arthroplasty.
J Clin Med
December 2024
Tel-Aviv Sourasky Medical Center, Faculty of Medicine, Tel-Aviv University, Tel Aviv 6423906, Israel.
The mortality rate following proximal humerus fractures (PHFs) in elderly patients is increased, but currently, there are no medium-term studies comparing mortality following treatment with Reverse Total Shoulder Arthroplasty (RTSA) to non-surgical treatment. This retrospective study compares two groups of elderly patients (aged 75 to 95 at the time of injury) who were diagnosed with PHFs. A total of 79 patients (mean age: 83.
View Article and Find Full Text PDFNovel 3D-Printed Reverse Shoulder Prosthesis for Reconstruction After Resection of the Scapular: A Report of 2 Cases.
JBJS Case Connect
January 2025
Department of Orthopedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Case: The effective reconstruction and functional restoration of the shoulder joint after surgical treatment of shoulder girdle tumors, especially those involving resection of the glenoid, poses significant challenges. Reconstruction methods include allograft reconstruction and shoulder prosthesis. In this report, we present 2 cases of scapulectomy for tumors involving the glenoid, followed by shoulder reconstruction using custom-designed reverse shoulder prostheses that are partially fixed to the clavicle.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!