【摘要】 目的:利用多层螺旋CT血管成像(MSCTA)研究腹腔动脉的解剖特点,旨在指导介入治疗。方法:随机选择150例行多层螺旋CT肝脏三期扫描的患者,选择5.0mm×2.5mm的扫描参数,行层厚3.0mm间隔1.5mm的轴面重建,采用容积再现(VR)后处理方法。结果:腹腔动脉开口位于T12中部~L1上部平面128例占85.3%。腹腔动脉与腹主动脉的下夹角呈锐角占86.7%,呈钝角占13.3%。由腹腔动脉干分为胃左、脾及肝总动脉三支者占92%,发现8%有正常变异。肝固有动脉走行与肝总动脉呈钝角占88.4%,呈锐角占11.6%。胃十二指肠动脉与肝总动脉呈钝角占71%,呈锐角占29%。脾动脉形态常见为上弧型、上升型、水平上升型、水平型、下弧型、下弧上升型等,波浪型及回旋型少见占5.1%。结论:腹腔动脉CT解剖研究对介入工作具有重要的指导意义。更多还原

【Abstract】 Objective:To analyze the anatomy of the celiac artery with multislice spiral CT Scan(MSCTA) for guiding interventional therapy.Methods:150 cases recommended to abdominal enhanced CT were randomly selected in this investigation.Images were obtained with 5.0 mm×2.5 mm scan project,the raw data were reconstructed with 3.0 mm thick section and 1.5 mm interval.All data of the arterial phase were reconstructed in the mode of volume rendering.Results:The celiac artery arose at the level between T12 and L1 in 85.3%.The angle between the celiac artery and abdominal aorta was acute in 86.7%,obtuse in 13.3%.In 92%,celiac arteries,as soon as it arose from abdominal aorta,divided into 3 branches,namely left gastric,splenic and common hepatic arteries.8% celiac arteries had variations.The angle between proper hepatic and common hepatic arteries was obtuse in 88.4% and acute in 11.6%.The angle between gastroduodenal and common hepatic arteries was obtuse in 71% and acute in 29%.The course of splenic artery showed many styles,namely concave,convex,horizontal,ascending and horizontal-ascending,etc.The rarer styles were of ripple-style and cirde-style.Conclusion:The investigation of the anatomy of the celiac trartery with MSCT scan can play a helpful role in the interventional theraphies.更多还原