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目的运用CT技术,对成人门腔间隙(PCS)的前后径进行测量并探讨及其解剖学特点。方法收集41例行腹部增强CT扫描而无腹部病变的病例,分别测量、记录:PCS的起始端、终末端和肝脏尾状叶下缘平面的门腔间隙前后径的最小值;取脐部正中水平轴位CT图像,测量、记录脐部脂肪层最厚处的厚度。结果门腔间隙的起始端、终末端和肝脏尾状叶下缘平面的门腔间隙前后径的平均最小值分别为0.427、0.529、0.344 cm。门腔间隙肝脏尾状叶下缘平面的前后径的最小值与腹壁脂肪厚度具有相关性(r=0.387,P<0.05);门腔间隙的起始端、终末端前后径的最小值与腹壁脂肪厚度无相关性(P>0.05)。结论 CT可充分显示门腔间隙的解剖细节。
Objective To measure and discuss the anteroposterior diameter of adult portal space (PCS) using CT technique and its anatomic features. Methods 41 cases of abdomen enhanced CT scan without abdominal lesions were collected and measured. The minimum value of the anteroposterior diameter of the portal space between the beginning and the end of the PCS and the inferior margin of the caudate lobe of the liver was measured and recorded. Horizontal axial CT image, measurement, recording umbilical fat layer thickness of the thickest. Results The average minimum values of anteroposterior diameter of the glenoid gap between the beginning and the terminal of the glenoid cavity and the lower edge of the caudate lobe were 0.427, 0.529 and 0.344 cm, respectively. The minimum anteroposterior diameter of the inferior margin of the caudate lobe of the glenospinal space was correlated with the thickness of the abdominal wall (r = 0.387, P <0.05). The minimum value of the anteroposterior diameter of the glenoid gap and the abdominal wall fat Thickness no correlation (P> 0.05). Conclusion CT can fully reveal the anatomic details of the glenoid space.