Document Type : RESEARCH PAPER
Authors
1
Department of Radiology, University of California San Diego, San Diego, CA, USA
2
Musculoskeletal imaging research center(MIRC), Department of Radiology, Shariati hospital, Tehran University of medical Sciences, Tehran, Iran
3
Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Fars, Iran
4
Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
5
Orthopedic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
10.22038/abjs.2025.83512.3802
Abstract
Objectives: Accurate diagnosis and characterization of rotator cuff tendon (RCT) tears are crucial for optimal treatment planning. This study compared the diagnostic performance of 3D Multiple Echo Recombined Gradient Echo (MERGE) MRI with conventional 2D MRI for RCT tear assessment and surgical planning.
Methods: Sixty-two patients with suspected RCT tears underwent shoulder MRI with standard 2D and 3D MERGE protocols, followed by arthroscopic evaluation. RCT tears were classified as crescent, longitudinal, or massive. Sensitivity, specificity, and accuracy of 3D MERGE and 2D MRI were calculated using arthroscopy as the reference standard. Inter-observer agreement was assessed using kappa statistics.
Results: Arthroscopy confirmed crescent tears in 25 (40%), longitudinal tears in 9 (15%), and massive tears in 28 (45%) patients. 3D MERGE MRI demonstrated higher accuracy for tear shape classification compared to 2D MRI (90.5% vs. 79.6%, P < 0.05). Sensitivity and specificity were markedly improved with 3D MERGE MRI, particularly for crescent tears (sensitivity 88.2% vs. 70.6%, specificity of 94.6% vs. 86.5%, P < 0.05). The inter-observer agreement was excellent for 3D MERGE MRI (kappa = 0.91) and good for 2D MRI (kappa = 0.76).
Conclusion: 3D MERGE MRI exhibited superior diagnostic performance and reliability compared to 2D MRI for RCT tear characterization. The enhanced accuracy of 3D MERGE MRI may facilitate preoperative assessment and surgical decision-making for RCT tears.
Keywords
Main Subjects
)