摘要
目的 探讨自发性脊柱硬膜外血肿MRI表现特征.方法 对9例自发性脊髓硬膜外血肿的MRI表现作回顾性分析,本组患者均无明显的外伤史,发病后4～24h行MRI检查5例,1～3天行MRI检查3例,5天行MRI检查1例.常规横轴面、矢状面T2WI、TIWI及T2 WI脂肪抑制技术.结果 血肿发生于颈段4例,胸段2例,颈胸交界部2例,腰段1例.9例均表现为脊髓硬膜外梭形,长度7～12cm.血肿位于脊髓正后方4例,脊髓右后方3例,脊髓左后方1例,脊髓正前方1例,脊髓不同程度受压移位,脊髓与血肿间见线条状低信号影.4～24h行MRI检查5例,于T2 WI上呈稍高信号3例,高信号1例,等信号1例;于T11WI上呈等信号3例,等低信号2例.1～3天行MRI检查3例,于T2WI上呈低信号1例,等信号1例,等低信号1例;于T1WI上呈等信号2例,等低信号1例.5天行MRI检查1例,于T2 WI上呈低信号;T1WI上呈稍高信号.9例中T2WI压脂上呈低信号3例,等信号4例,高信号2例.结论 MRI是诊断自发性脊髓硬膜外血肿的最佳检查方法,不仅可以清楚地显示血肿的部位及范围,而且可以清楚地显示血肿新旧程度.
Objective To study the MR imaging features of patients with spontaneous spinal epidural hematoma （SSEH）. Methods The MR imaging findings of 9 cases of SSEH, which consisted of 4 males and 5 females, were ob served in our hospital from 2005 to 2010. The age was ranged from 6 to 75 years old with an average of 39.2 years. All ca- ses had no injury history. 5 cases were subjected to MR 4--24 h after the onset, 3 cases to MR 1~3 d after the onset, and 1 case to MR 5 d after the onset, respectively. The routine SE T~ WI, T2 WI sagittal and T2WI transverse planes were per- formed with MR scanner and T2WI fat suppression pulse. Results The hematomas had shuttle or oval shape, which oc- curred in lateral posterior or posterior epidural space, including 4 cases at cervical vertebral segment, 2 cases at thoracic vertebral segment, 2 cases at cervical and thoracic vertebral segment, 1 case at thoracic and lumbar vertebral segment. The streak-shaped low signals between in spinal marrow and hematoma was found. All 9 cases presented with spindle- shaped mass in epidural space, with length of 7~12 cm, of which 4 were located in the dorsal area of spinal cord, 3 in right rear of spinal cord, 1 in the left rear of spinal cord, and 1 in front of the spinal cord. Of thses 5 cases underwent MR at times from 4 to24 h 3 presented with slightly high signal, 1 high signal, and 1 isointense signal of T2WI, while, 3 with isointense signal, and 2 isointense and low signal of Wl WI. Of these 3 cases performed MR from 1 to 3 d, 1 presented with low signal, 1 isointense signal, and 1 isointense and low signal of T2WI, while, 2 with isointense signal, 1 with isointense and low signal of TlWI. As for the case performed MR on 5 d, low signal of T2WI and slightly high signal of TlWI ap- peared. Of these 9 cases, 3 presented with low signal, 4 with isointense signal, and 2 with high signal after fat saturation of TaWI. Conclusion MRI imaging is the best method in diagnosis of spontaneous spinal epidural hematoma, which can clearly show not only the location and range of hematoma, but also the age of hematoma.
出处
《医学影像学杂志》
2013年第11期1680-1682,共3页
Journal of Medical Imaging
关键词
血肿
硬膜外
脊髓
磁共振成像
Hematoma
Epidural
Spinal
Magnetic resonance image
