急性脊髓型减压病的MRI诊断

目的 描述急性脊髓型减压病的MRI表现,提高对该病的认识水平.方法 对5例有明确潜水作业史,且违反减压规定、快速出水后短时内出现完全或不完全性脊髓损害症状,以感觉障碍和大小便失禁为主要临床表现,经临床综合确诊为急性脊髓型减压病的患者的MRI表现进行回顾性分析.结果 5例均见脊髓空泡征及T2 WI弥漫性略高信号,在T1 WI上呈等信号3例,略高信号和略低信号各1例.3例见猫头鹰眼征,2例见多发腔隙性病灶,T2 WI脊髓内条状低信号及T1 WI马尾略高信号各1例.结论 急性脊髓型减压病的MRI表现具有一定特点,结合潜水并违规减压史和临床表现容易作出准确诊断.

MRI diagnosis of acute spinal cord decompression sickness

Objective To describe MRI findings of acute spinal cord decompression sickness.Methods MRI findings of 5 cases with clinical definite acute spinal cord decompression sickness were retrospectively analyzed.The main clinical informations included underwater performance history against regulations,short-term complete or incomplete spinal cord injury symptoms after fast going out of water,sensory disability and urinary and fecal incontinence,etc.Results Spinal cord vacuole sign was found in all 5 cases.Iso-signal intensity(n=3),high signal intensity(n=1),and low signal intensity (n=1)was demonstrated on T1 WI,and high signal intensity(n=5)was found on T2 WI.Owl eye sign was detected in 3 cases,and lacune foci were seen in 2 cases.Conclusion MRI findings of acute spinal cord decompression sickness had some characteristics,and it was easy to diagnose by combining diving history with clinical manifestations.