摘要
目的探讨膝关节骨挫伤的MR诊断价值。方法回顾分析32例骨挫伤的MR表现,并与临床资料相对照。结果本组32例膝关节骨挫伤MR均表现信号异常,为骨骺或干骺端松质骨内斑片状、地图状或网状信号,自旋回波SE序列及快速自旋回波FSE序列T1W呈低或等信号,T2W呈混杂高信号,境界不清,梯度回波脂肪抑制GE序列及短时反转恢复STIR序列病变T2W呈显著高信号,境界清晰。膝关节骨挫伤扭伤多见,常位于胫骨平台后外侧、股骨外髁和胫骨平台内侧,可合并半月板、前交叉韧带和侧副韧带损伤,14例临床症状消失后复查MR示骨挫伤信号恢复正常。结论MR能揭示膝关节骨挫伤的病理改变,准确判断有无其他结构的损伤,是膝关节骨挫伤的最佳检查手段。
Objecetive To assess the diagnostic value of magnetic resonance in diagnosis of the contusion of knee joint bone. Methods The MR of 32 patients with bone eontusion of knee joints were analyzed retrospectively, and compared with clinical data, Results The MR scans of the 32 eases revealed abnormal signals： patch - like, map - like or net - like signals in osteoepiphysis and metaphyscs, T1W of SE sequence and FSE sequence exhibited low or equal signals, and T2W showed mixed high signals with obscure boundary. T2W of GE（gradient echo） sequence and STIR （short- tau inversion recovery） sequence displayed significant high signals with distinct boundary. The bone contusion of knee joints is often seen on posterior - external and internal part of tibial plateau and fermoral condyle, and may be accompanied by meniscus, anterior cruciate ligament, and cartilage injuries. In 14 cases, MR showed disappearance of abnormal signals after subsidence of clinical symptoms. Conclusions MR depicts the pathologic changes in bone contusion of knee joints, and determines accurately the presence of other injuries;hence it is the most effective means for the diagnosis of bone contusion of knee joints.
出处
《武警医学》
CAS
2005年第8期594-596,共3页
Medical Journal of the Chinese People's Armed Police Force
