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目的为体外腹主动脉末端阻断辅助标准心肺复苏(CPR)提供影像解剖学基础。方法75名患者的CT影像解剖图中,以脐为标志点,主要观测:①脐中点水平面对应椎体的位置;②腹主动脉末端与脐中点的关系;③腹主动脉下段、下腔静脉下段与腰椎的相对位置关系。结果腹主动脉末端、腰椎与脐标志点基本重叠于人体正中线位置:①脐中点位于腰4椎体下缘以上40.31mm,以下32.82 mm范围内;②腹主动脉末端在脐上、下35 mm范围内;③腹主动脉末端所在的横切面上腹主动脉位于脊柱椎体前略偏左侧,下腔静脉在此平面位于椎体前偏右侧。结论可以脐为重要的标志点定位腹主动脉末端以进行体外腹主动脉远端阻断,辅助标准CPR改善血流动力学机制,保证心脑等重要器官血供,从而增高冠状动脉灌注压和CPR成功率。
Objective To provide the basis of image anatomy for the in vitro aortic end-blocking assisted standard cardiopulmonary resuscitation (CPR). Methods The CT images of 75 patients were marked by umbilical cord. The main observations were as follows: ① The position of the vertebral body corresponding to the midpoint of umbilical cord; ② The relationship between the end of the abdominal aorta and the midpoint of the umbilical cord; ③ The lower abdominal aorta, The relationship between inferior vena cava and lumbar spine. Results At the end of the abdominal aorta, the lumbar and umbilical markers basically overlapped the median line of the human body: ① The midpoint of the umbilical cord was located above the lower edge of the lumbar vertebra 4 40.31mm and within the range of 32.82mm; ② The distal end of the abdominal aorta was above and below the umbilicus 35 mm range; ③ abdominal aorta where the cross-section of the abdominal aorta is located slightly in front of the left vertebral vertebral, inferior vena cava in this plane is located in front of the right side of the vertebral body. Conclusion Umbilical cord can be used as an important marker point to locate the distal end of the abdominal aorta in order to block the distal abdominal aorta in vitro. The standard CPR can be used to improve the hemodynamic mechanism and ensure the blood supply of important organs such as heart and brain, thereby increasing coronary perfusion pressure CPR success rate.