摘要
目的评价肩关节MR造影各向同性三维容积插入屏气(VIBE)序列对盂唇撕裂的诊断价值。方法由2名影像诊断医师独立回顾性对比分析79例肩关节造影常规二维序列图像和各向同性三维VIBE重建图像,判定有无盂唇撕裂,计算敏感度和特异度,比较常规二维序列与各向同性三维VIBE诊断价值及两名影像诊断医师评价的一致性。结果 79例患者中,肩关节镜证实上方盂唇撕裂(SLAP损伤)27例,前方盂唇撕裂44例,后方盂唇撕裂10例。肩关节MR造影各向同性三维VIBE以及常规二维序列对上方盂唇撕裂的敏感度分别为81.48%(22/27)～88.89%(24/27)、85.19%(23/27)～92.59%(25/27),特异度为82.69%(43/52)～84.62%(44/52)、84.62%(44/52)～86.54%(45/52);对前方盂唇撕裂的敏感度分别为88.64%(39/44)～90.91%(40/44)、90.91%(40/44)～95.45%(42/44),特异度为94.29%(33/35)～97.14%(34/35)、97.14%(34/35);对后方盂唇撕裂的敏感度分别为80.00%(8/10)～90.00%(9/10)、80.00%(8/10),特异度为92.75%(64/69)～95.65%(66/69)、94.20%(65/69)～95.65%(66/69)。2名影像诊断医师评价的一致性极好。各向同性三维VIBE和常规二维序列对于盂唇撕裂的诊断效能差异均无统计学意义。结论肩关节MR造影各向同性三维VIBE序列成像是评价盂唇撕裂比较可靠的影像方法。
Objective To observe the diagnostic value of shoulder MR arthrographic fat-suppressed three-dimensional（3D） isotropic volumetric interpolated breath-hold examination（VIBE） sequence for labral tears.Methods MR arthrographic fat-suppressed 3D isotropic VIBE and conventional T1W turbo spin-echo sequences were performed in 79 patients.The results of arthroscopy were regarded as gold standards,the sensitivity,specificity and accuracy of fat-suppressed 3D VIBE and conventional TSE images for detection of labral tears were calculated and compared by 2 radiologists,respectively.K values were calculated to quantify the level of interobserver agreement.Results Twenty-seven of the 79 patients were classified as SLAP lesions,44 as anterior labral tears,and 10 as posterior labral tears.There was no statistical difference between fat-suppressed 3D isotropic VIBE and conventional TSE regarding the sensitivity（81.48%—88.89%,85.19%—92.59%） and specificity（82.69%—84.62%,84.62%—86.54%） of SLAP lesions,sensitivity（88.64%—90.91%,90.91%—95.45%） and specificity（94.29%—97.14%,97.14%） of anterior labral tears,nor sensitivity（80.00%—90.00%,80%） and specificity（92.75%—95.65%,94.20%—95.65%） of posterior labral tears.At interobserver comparison,the consistency was very good.Conclusion Fat-suppressed 3D isotropic VIBE MR arthrography is a reliable method to evaluate labral tears.
出处
《中国医学影像技术》
CSCD
北大核心
2011年第12期2515-2519,共5页
Chinese Journal of Medical Imaging Technology
基金
北京市科委首都临床特色应用研究基金(Z111107058811091)
关键词
肩关节
损伤
磁共振成像
Shoulder joint
Injuries
Magnetic resonance imaging
