Needell S D, Zlatkin M B
Department of Radiology, Memortal Regional Hospital, Hollywood, FL 33332, USA.
J Magn Reson Imaging. 1997 Jul-Aug;7(4):674-7. doi: 10.1002/jmri.1880070411.
The purpose of this study was to compare the diagnostic performance of fat-saturation fast-spin-echo (FSE) T2-weighted (T2W) sequences with conventional spin-echo (CSE) T2W sequences in the detection of rotator cuff pathology using surgery as the reference standard. Oblique coronal dual-echo CSE and FSE T2W images with fat saturation from 50 surgically confirmed MR shoulder examinations were acquired on a 1.5-T MR scanner. Blinded MR readers retrospectively analyzed each imaging sequence separately and ultimately correlated both sequences together with findings at surgery. FSE was 100% sensitive and 94% specific in detection of full-thickness tears (n = 19) and 73% sensitive and 97% specific in the detection of partial-thickness rotator cuff tears (n = 13). There was no statistically significant difference in the performance of FSE with fat saturation compared with CSE. The two discrepancies between imaging sequences related to the extent of partial-thickness tears. Our findings suggest that fat-saturation FSE imaging can effectively replace CSE imaging in the evaluation of rotator cuff pathology.
本研究的目的是使用手术作为参考标准，比较脂肪饱和快速自旋回波（FSE）T2加权（T2W）序列与传统自旋回波（CSE）T2W序列在检测肩袖病变方面的诊断性能。在一台1.5-T磁共振成像扫描仪上，采集了50例经手术证实的肩部磁共振检查的斜冠状面双回波CSE和脂肪饱和FSE T2W图像。不知情的磁共振阅片者分别对每个成像序列进行回顾性分析，并最终将两个序列与手术结果进行关联。FSE在检测全层撕裂（n = 19）时敏感性为100%，特异性为94%；在检测部分厚度肩袖撕裂（n = 13）时敏感性为73%，特异性为97%。与CSE相比，脂肪饱和FSE的性能没有统计学上的显著差异。成像序列之间的两个差异与部分厚度撕裂的程度有关。我们的研究结果表明，脂肪饱和FSE成像在评估肩袖病变时可有效替代CSE成像。
