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目的评价MRI对腓肠肌运动性损伤的诊断价值和临床意义。资料与方法选取29例X线平片未显示胫腓骨骨折,但MRI显示有腓肠肌损伤的运动性损伤患者,MR检查时间为外伤后1～14天,采用相控阵表面体线圈,常规T1WI、T2WI以及T2WI脂肪抑制序列,部分加做了短时间反转恢复序列(STIR),扫描以平行于胫腓骨长轴的矢状面和冠状面为主,辅以垂直于骨骼长轴的横断面。结果29例中发现腓肠肌Ⅰ度损伤11例,Ⅱ度损伤13例,Ⅲ度损伤5例,均未显示胫腓骨骨折及骨挫伤。结论腓肠肌运动性损伤具有特征性的MRI表现,显示清晰,全面,采用合理扫描技术并正确认识其MR征象,可为临床提供可靠诊断。
Objective To evaluate the diagnostic value and clinical significance of MRI on gastrocnemius motor injury. Materials and Methods Twenty-nine patients with X-ray showed no fracture of the tibia-fibula, but the MRI showed the patients with sports injury with gastrocnemius injury. The time of MR examination was 1 to 14 days after the trauma. Phased array surface coil, conventional T1WI, T2WI and T2WI fat suppression sequences were partially plus short-term inversion recovery sequence (STIR). The scan was mainly sagittal and coronal parallel to the long axis of the tibia and fibula, supplemented by a cross-section perpendicular to the long axis of the bone. Results In the 29 cases, 11 cases of gastrocnemius Ⅰ degree injury, 13 cases of Ⅱ degree injury and 5 cases of Ⅲ degree injury were found. No fracture of tibia and fibula and contusion of bone were found. Conclusions The gastrocnemius motor injury has the characteristic MRI manifestations, showing a clear and comprehensive, using reasonable scanning techniques and correctly understand the MR signs, it can provide a reliable diagnosis for the clinical.