MSCT鉴定交通事故致死2例分析

Application of MSCT in the Identification and Analysis of Traffic Accidents: 2 Fatal Cases

目的使用多层螺旋CT(multi-slice spiral computed tomography,MSCT)对交通事故的致伤特征进行观察和分析,探讨MSCT在分析交通事故中的应用价值。方法以2例交通事故为对象,运用MSCT平扫、三维重建技术以及心脏穿刺造影技术对尸体进行全面检查,结合尸表检查分析交通伤形成机制等特点。结果案例1 MSCT结合心脏穿刺造影,发现死者右心破裂,死亡原因为交通事故挤压胸部致右心破裂、心脏压塞。案例2 MSCT发现左侧躯干部损伤引起脾破裂、腹腔出血,死亡原因为失血合并创伤性休克。结论 MSCT对于骨骼损伤、软组织损伤、血液改变均具有良好的观察效果,MSCT平扫结合心脏造影有助于诊断心血管系统的损伤。

Objective To explore the application value of multi-slice spiral computed tomography （MSCT） in traffic accidents through observing and analyzing the injury features of the accidents. Methods Two fatal cases caused by traffic accidents were fully examined using MSCT, 3D imaging reconstruction and angiography through cardiac puncture. The features of traffic injury mechanism were analyzed through combination of MSCT and postmortem external examination. Results In case 1, right cardiac rupture was found by MSCT and angiography through cardiac puncture. The cause of death was cardiac tam-ponade and right ventricular rupture due to the crush injury of chest in the traffic accident. In case 2, splenic rupture and intra-abdominal hemorrhage was found and caused by injury of left trunk by MSCT. The cause of death was hemorrhage and traumatic shock. Conclusion MSCT could observe skeletal in-jury, soft tissue injury, and hematologic disorder well. The combination use of MSCT and angiography through cardiac puncture provided assistance to the diagnosis of cardiovascular system injury.