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目的 探讨用多层螺旋CT血管造影显示腹腔动脉的能力。方法 37例病人行腹腔动脉多层面螺旋CT血管造影。平扫后行动脉期和门脉期扫描 ,动脉期参数为层厚 3.2mm ,重建间隔 1.6mm ,螺距 1.2 5 ,延迟时间 2 5s ,对比剂量 70～ 90ml,动脉期数据传入工作站行最大密度投影法和容积显示法重建。结果 34例常见型腹腔动脉 ;1例肝固有动脉缺如 ,2例富血供肝细胞癌 ,其中 1例肝左叶癌见肝左动脉供血 ,1例肝右叶癌见肝右动脉供血 ,供血动脉增粗毛糙。所有腹腔动脉的CT血管造影显示情况为脾动脉 10 0 % ( 37/37) ,肝总动脉 10 0 % ( 37/37) ,肝固有动脉 10 0 % ( 36/36) ,肝右动脉 90 % ( 31/37) ,肝左动脉 89% ( 30 /37) ,胃左动脉 60 % ( 2 0 /37) ,胃十二指肠动脉 90 % ( 31/37)。最大密度投影法和容积显示法的显示能力相当 ,t=1.441,P =0 .2 0 0 (配对t检验 )。结论 腹腔动脉的CT血管造影是可行的 ,最大密度投影法和容积显示法的显示能力相当
Objective To explore the ability of multi-slice spiral CT angiography to show celiac artery. Methods 37 patients underwent celiac arterial multi-slice spiral CT angiography. The arterial phase parameters were layer thickness 3.2mm, reconstruction interval 1.6mm, pitch 1.25, delay time 25s, contrast dose 70-90ml. The arterial phase data was transferred to the maximum density of workstation Projection and Volume Reconstruction. Results 34 cases of common type of celiac artery; 1 case of missing hepatic artery, 2 cases of blood-rich donor hepatocellular carcinoma, including 1 case of left lobe of the liver see the left hepatic artery, 1 case of right lobe of the liver see the right hepatic artery, Arteries thickening rough. CT angiograms of all celiac arteries revealed 10 0% (37/37) of the splenic artery, 10 0% (37/37) of the common hepatic artery, 10 0% (36/36) of the hepatic artery, 90% of the right hepatic artery (31/37), left hepatic artery 89% (30/37), left gastric artery 60% (20/37) and gastroduodenal artery 90% (31/37). The maximum density projection method and volumetric display method have the same display ability, t = 1.441, P = 0.200 (paired t test). Conclusion CT angiography of celiac artery is feasible. The maximum density projection method and volumetric display method are comparable