MRI检查肩袖损伤的临床分析

目的分析肩袖损伤在MR检查时的不同扫描定位及在不同序列上的显示效果。方法对40例肩袖损伤患者行横断位T2WI,斜矢状位T1WI,斜冠状位脂肪抑制(STIR)及双斜冠状位T1WI、T2WI、脂肪抑制(STIR)扫描,分析斜冠状位与双斜冠状位图像对冈上肌、冈上肌肌腱以及肱骨干长轴的显示能力和对肩袖损伤的显示效果;以及在双斜冠状位各个序列(T1WI、T2WI、脂肪抑制STIR)中对肩袖损伤的图像显示效果按评价标准进行评价和对显示结果比较。结果 40例肩关节的斜冠状位和双斜冠状位都能全部显示冈上肌长轴,且双斜冠状位能把冈上肌、冈上肌肌腱全长及肱骨干长轴显示于一幅图像中,而斜冠状位不能;斜冠状位(STIR)显示肩袖部分撕裂和完全撕裂的分别为13例和14例,双斜冠状位(STIR)分别为22例和14例;双斜冠状位T1WI、T2WI、STIR三个序列显示肩袖结构好、较好、差的例数分别为(10、26、32;14、11、7;3、2、1)双斜冠状位T1WI、T2WI、STIR三个序列发现冈上肌肌腱、肩胛下肌肌腱、冈下肌肌腱、小圆肌肌腱、肱二头肌长头肌腱异常的例数分别为(4、21、28;2、9、15;1、6、10;0、2、4;0、1、2)。结论双斜冠状位对冈上肌、冈上肌肌腱全长及肱骨干长轴的显示能力和对肩袖损伤的显示结果均优于斜冠状位;双斜冠状位的脂肪抑制(STIR)序列对肩袖损伤的显示效果和结果均优于T2WI和T1WI。

Clinical analysis of MR scanning in the detection of rotator cuff injury

Objective To analyze the MR examination in different sequence positioning and displaying effect on rotator cuff injury. Methods 40 patients with rotator cuff injury patients were subjected to a cross-sectional T1WI, oblique sagit tal T1WI, oblique coronary fat-suppression （STIR） and double inclined coronal, T1WI, T2 WI, fat inhibit （STIR） scan- ning. And then, the coronal, and double inclined coronary bit image of the supraspinatus, the supraspinatus tendon and the backbone of the long axis of the hrachiaI display ability were analyzed so as to display the rotator cuff injury. And in the double inclined coronal, each sequence （T1 WI, T2 WI, fat inhibit STIR） of rotator cuff injury to display images and evaluation standard for comparison were shown in the result. Results 40 cases of the inclined shoulder coronal and double inclined coronal can show all the supraspinatus long axis, and double inclined coronary can put the supraspinatus, the su- praspinatus tendon span and humerus backbone long axis were shown in an image, but inclined coronal can not show. Inclined coronary patients （STIR） showed that rotator cuff tear and completely torn part separately in 13 cases and in 14 ca- ses, double inclined coronary patients （STIR） were 22 cases and 14 cases. Double inclined coronal, T1 WI, T2WI, STIR three sequence showed rotator cuff structure good, good, and sent the number 10, 32, 26, 11, 7, 3, 2, 1 respectively. Double inclined coronal, TlWI, T2WI, STIR three sequence of the supraspinatus tendon found under the shoulder blade muscle tendon, infraspinatus tendon, small round muscle tendon, biceps long tendons abnormal number 4, 21, 28, 2, 9, 15, 1, 6, 10, 0, 2, 4, 0, 1, 2 respectively. Conclusion Double inclined coronal, the supraspinatus of the supraspinatus tendon span and humerus backbone of the long axis, which were able to to display the results of rotator cuff injury, are su- perior oblique coronal. Double inclined coronary fat inhibit （STIR） sequence on the rotator cuff injury in displaying effect are better than those of T2 WI and T1 WI.