Howes Meghan K, Gregory T Stan, Hardy Warren N, Beillas Philippe D
Virginia Tech-Wake Forest University, Blacksburg, VA, USA.
Stapp Car Crash J. 2012 Oct;56:1-48. doi: 10.4271/2012-22-0001.
High-speed biplane x-ray was used to investigate relative kinematics of the thoracoabdominal organs in response to blunt loading. Four post-mortem human surrogates instrumented with radiopaque markers were subjected to eight crash- specific loading scenarios, including frontal chest and abdominal impacts, as well as driver-shoulder seatbelt loading. Testing was conducted with each surrogate perfused, ventilated, and positioned in an inverted, fixed-back configuration. Displacement of radiopaque markers recorded with high-speed x-ray in two perspectives was tracked using motion analysis software and projected into calibrated three-dimensional coordinates. Internal organ kinematics in response to blunt impact were quantified for the pericardium, lungs, diaphragm, liver, spleen, stomach, mesentery, and bony structures. These data can be used to better understand the interaction of anatomical structures during impact and the associated injury mechanisms, and for the development or validation of human body finite element models.
采用高速双翼X射线来研究胸腹部器官在钝性加载作用下的相对运动学。对4具带有不透射线标记物的尸体代用品施加8种特定碰撞加载场景，包括胸部和腹部正面撞击以及驾驶员肩部安全带加载。在每具代用品进行灌注、通气并以倒置、固定背部的姿势放置后进行测试。利用运动分析软件跟踪从两个视角通过高速X射线记录的不透射线标记物的位移，并将其投影到校准后的三维坐标中。对心包、肺、膈肌、肝脏、脾脏、胃、肠系膜和骨骼结构，定量分析了钝性撞击下的内部器官运动学。这些数据可用于更好地理解撞击过程中解剖结构的相互作用及相关损伤机制，还可用于开发或验证人体有限元模型。
