Tsai Yao-Hung, Huang Kuo-Chin, Shen Shih-Hsun, Yang Tien-Yu, Huang Tsung-Jen, Hsu Robert Wen-Wei
Department of Orthopaedic Surgery, Chang Gung Memorial Hospital at Chia-Yi, No. 6, West Sec, Chia-Pu Road, Putz, Cha-I, 613, Taiwan, ROC.
College of Medicine, Chang Gung University at Taoyuan, Taoyuan, Taiwan, ROC.
J Med Ultrason (2001). 2014 Jul;41(3):343-9. doi: 10.1007/s10396-013-0516-6. Epub 2013 Dec 27.
The aim of this study was to compare the gray-level value of the supraspinatus tendon of a painful shoulder with that of a normal shoulder measured by ultrasonography, and to investigate whether a low mean gray-level value of the supraspinatus tendon could indicate a partial-thickness or incomplete full-thickness tear.
Two hundred and ten patients had significant unilateral shoulder pain with the clinical suspicion of rotator cuff tendinopathy. They underwent bilateral shoulder ultrasonography, and the mean echogenicity of the histogram was calculated on the screen. The mean gray-level value of each patient's contralateral asymptomatic shoulder was compared with that of the painful shoulder.
Based on the scan of transverse and longitudinal planes, a significant difference existed between the symptomatic shoulder and contralateral asymptomatic shoulder (p < 0.0001). The mean gray-level values of symptomatic shoulders showed no statistically significant difference between the patients who underwent surgery and the patients who underwent conservative treatment.
We demonstrated that the ultrasound gray-level histogram is a promising tool for detecting the hypoechogenic appearance of supraspinatus tendinopathy. A decrease in the mean gray-level value on the symptomatic shoulder may be used as an alternative sonographic indicator of rotator cuff partial-thickness tear or tendinopathy.
Diagnostic level III.
本研究旨在比较超声测量的疼痛性肩部与正常肩部冈上肌腱的灰度值，并探讨冈上肌腱平均灰度值低是否可提示部分厚度或不完全全层撕裂。
210例患者有明显的单侧肩部疼痛，临床怀疑有肩袖肌腱病。他们接受了双侧肩部超声检查，并在屏幕上计算直方图的平均回声性。将每位患者对侧无症状肩部的平均灰度值与疼痛肩部的平均灰度值进行比较。
基于横切面和纵切面扫描，有症状肩部与对侧无症状肩部之间存在显著差异（p < 0.0001）。接受手术治疗的患者与接受保守治疗的患者，有症状肩部的平均灰度值无统计学显著差异。
我们证明超声灰度直方图是检测冈上肌腱病低回声表现的一种有前景的工具。有症状肩部平均灰度值降低可作为肩袖部分厚度撕裂或肌腱病的替代超声指标。
诊断性III级。
