腰背部浅筋膜炎的MRI表现

MRI manifestations of lumbosacral superficial fasciitis

目的全面分析腰背部浅筋膜炎的MRI表现,提高对腰背部浅筋膜炎的认识。方法分析了从426例腰痛和腰部不适进行MRI检查的患者中发现的58例腰背部浅筋膜炎的MRI表现。结果腰背部浅筋膜炎的MRI表现为浅筋膜内出现异常信号及T1WI稍低信号,T2WI稍高信号,STIR高信号,58例可为四型:片状型,11例(28.9%),条状型40例(68.29%),积液型2例(3.4%),混合型5例(8.6%)。结论 MRI具有较高的软组织分辨力,是目前诊断腰背部浅筋膜炎最敏感、最特异的影像学检查方法。

Objective To analyze the MR manifestations of lumbosacral superficial fasciitis comprehensive and to improve ability which understands lumbosacral superficial fasciitis. Methods 426 patients with low back pain or leg pain were taken MRI examination and 158 cases of them were shown lumbosacral superficial fasciitis by MRI. The MRI manifestations of lumbosacral superficial fasciitis were analyzed. Results Lumbosacral superficial fasciitis showed strip abnormal signal with low signal in T1WI, slightly high signal in T2WI, and high signal in STIR sequence in superficial fascia behand vertebra. According to MRI manifestation, 158 cases were classified into four types： 22 cases （13.9%） were flake type, 118 cases （74.7%） were strip type, 4 cases （2.5%）were hydrops type and 14 cases （8.9%） were mixed type. Conclusion MRI has high resolution to soft tissue, which is the most sensitive and specific imaging examination method to lumbosacral superficial fasciitis.