摘要
目的分析MRI征象Ⅲ型肩峰、肱肩间隙狭窄和肩袖撕裂对肩峰下撞击综合征(SAIS)的诊断价值。方法对92例肩关节MRI疑诊SAIS患者,以关节镜结果为诊断金标准,比较Ⅲ型肩峰、肱肩间隙狭窄和肩袖撕裂单一征象或联合征象诊断SAIS的效能。结果Ⅲ型肩峰、肩峰下间隙变窄、肩袖撕裂和联合征象诊断SAIS的敏感度分别为51.06%(24/47)、72.34%(34/47)、80.85%(38/47)和85.11%(40/47),单一肩袖撕裂诊断敏感度与联合征象比较差异无统计学意义(χ2=0.17,P=0.68),特异度(64.44%,29/45)低于联合征象(84.44%,38/45),差异有统计学意义(χ2=7.11,P=0.008)。结论 MRI可显示SAIS肩袖损伤、肩峰形态和最短肱肩间隙狭窄,根据以上三种征象联合诊断SAIS的效能较高。
Objective To observe the value of MRI signs, including type Ⅲ acromion morphology, acromio humeral distance narrowing and rotator cuff tear in diagnosis of subacromial impingement syndrome （SAIS）. Methods Totally 92 patients with MRI suspected SAIS underwent arthroscopy. MRI data were retrospectively analyzed. Taken findings of arthroscopy as gold standards, diagnostic ability of single and combined MRI manifestations, including type Ⅲ acromion morphology, acromio humeral distance narrowing and rotator cuff tear were evaluated and compared. Results The sensitivity and specificity of type Ⅲ acromion morphology, acromio humeral distance narrowing, rotator cuff tear and three signs combination was 51.06% （24/47）, 72.34% （34/47）, 80.85% （38/47） and 85.11% （40/47）, respectively. The diagnostic sensitivity of rotator cuff tear was not significantly different compared with that of combination of all three signs （χ2=0.17,P=0.68）, but the specificity （64.44%, 29/45） was lower than that of the latter （84.44%, 38/45, χ2=7.11, P=0.008）. Conclusion MRI can display type Ⅲ acromion morphology, acromio humeral distance narrowing and rotator cuff tear, and has relatively high diagnostic ability of SAIS with combination of all three signs.
出处
《中国医学影像技术》
CSCD
北大核心
2014年第3期449-452,共4页
Chinese Journal of Medical Imaging Technology
关键词
肩撞击综合征
磁共振成像
肩关节
Shoulder impingement syndrome
Magnetic resonance imaging
Shoulder joint
