Funke M, Kopka L, Vosshenrich R, Oestmann J W, Grabbe E
Department of Radiology 1, University Hospital, Göttingen, Germany.
Acta Radiol. 1996 Sep;37(5):627-32. doi: 10.1177/02841851960373P242.
To examine the value of fat-suppressed images in MR arthrography of the shoulder in patients with rotator cuff tears.
MR arthrography was performed in 25 patients (9 women, 16 men) ranging from 19 to 64 years. Standard T1-weighted spin-echo images (sSE) and fat-suppressed images (FS) were obtained after intraarticular injection of contrast material. The MR studies were analyzed according to contrast, image quality and conspicuity of pathology. A diagnosis was established without knowledge of the conventional arthrographic findings on the basis of sSE versus FS techniques.
The contrast between the intraarticular fluid and the adjacent structures in FS images was increased compared to sSE images in all patients. The conspicuity of anatomical structures was improved in 8 patients. Without fat suppression, 2 false-negative and one false-positive full-thickness tears were diagnosed. With the FS technique, 14 full-thickness tears and 4 partial-thickness tears of the cuff were correctly classified.
The results suggest that, if MR arthrography is chosen for a diagnosis of rotator cuff disorders, a fat suppression sequence should be included.
探讨脂肪抑制图像在肩袖撕裂患者肩关节磁共振关节造影中的价值。
对25例年龄在19至64岁之间的患者（9例女性，16例男性）进行磁共振关节造影。关节内注射造影剂后，获取标准T1加权自旋回波图像（sSE）和脂肪抑制图像（FS）。根据造影剂、图像质量和病变的显见度对磁共振研究进行分析。在不了解传统关节造影结果的情况下，基于sSE与FS技术进行诊断。
与sSE图像相比，所有患者的FS图像中关节内液体与相邻结构之间的对比度均有所增加。8例患者的解剖结构显见度得到改善。未进行脂肪抑制时，诊断出2例假阴性和1例假阳性全层撕裂。采用FS技术时，正确分类了14例全层撕裂和4例部分层撕裂。
结果表明，如果选择磁共振关节造影来诊断肩袖疾病，应包括脂肪抑制序列。
