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MR imaging of occult fractures
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF RADIOLOGY
- Issue:
- 11
- DOI:
- 10.3760/j.issn:1005-1201.2001.11.002
- Key Word:
- 骨折;磁共振成像;诊断,鉴别
Abstract： 目的探讨隐性骨折的MRI诊断价值. 方法 16例急性外伤患者均行X线平片检查及MRI检查,3例同时行CT检查,受伤部位分别为股骨髁3例,胫骨近端8例,胸腰段椎体5例.结果本组16例X线平片均未见骨折征像;11例(11/16)股骨髁及胫骨近端受伤病例中3例(3/16)T1WI 见骨皮质下线状低信号带改变,8例(8/16)显示由关节面下向骨干走行的不规则条状、紊乱低信号改变;在T2WI上对应于T1WI 低信号区仍表现为相应形状的低信号,且在低信号周围可见高信号水肿改变;T1脂肪抑制序列扫描显示水肿带信号明显增强、增宽.2例股骨髁和1例胫骨近端病例同时行CT检查,示周围软组织肿胀,未见确切骨折征像.5例(5/16)胸腰段椎体MR T1WI 、 T2WI示椎体中央有水平方向走行的线状低信号带,在T2WI低信号周围可见高信号水肿.结论 MRI能够早期确诊隐性骨折,若患者临床症状、体征不能除外隐性骨折,X线检查后行MRI应为最佳的检查手段.
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