舌下含服硝酸甘油对胰腺动脉CT成像质量的影响  

Pre-CT sublingual nitroglycerin influence the image quality of pancreatic arteries

作　　者：张万军[1] 张博[1] 龚建平[1] 范国华[1] 钱铭辉[1] 窦欣[1] ZHANG Wanjun;ZHANG Bo;GONG Jianping;FAN Guohua;QIAN Minghui;DOU Xin(Department of Radiology,the Second Affiliated Hospital of Soochow University,Suzhou,Jiangsu Province 215004,China)

机构地区：[1]苏州大学附属第二医院影像科,江苏苏州215004

出　　处：《实用放射学杂志》2020年第9期1407-1410,1429,共5页Journal of Practical Radiology

基　　金：江苏省苏州市“科教兴卫”青年科技项目(KJXW2017017);江苏省苏州市社会发展指导性项目(SYSD2016095)。

摘　　要：目的研究硝酸甘油对胰腺动脉的扩张作用.方法将36例临床怀疑腹痛准备行CT检查的患者纳入本研究,分为服药组、对照组,服药组检查前舌下含服硝酸甘油0.5 mg.在MIP图上对胰腺动脉起始部的血管内径进行测量.运用MIP、VR、MPR等后处理技术观察胰腺动脉,并计算显示率,使用0~3分的4级评分标准评价胰腺动脉,评分为3分或2分者定义为优良.结果①服药组的胰十二指肠前上动脉(ASPDA)、胰十二指肠前下动脉(AIPDA)、胰十二指肠后上动脉(PSPDA)、胰十二指肠后下动脉(PIPDA)、胰背动脉(DPA)、胰横动脉(TPA)、胰大动脉(PMA)、胰尾动脉(CPA)的管径均明显高于对照组.②服药组的胰腺动脉整体显示率为83.4%,明显高于对照组的69.4%.③服药组的AIPDA、PIPDA、DPA、TPA、PMA、CPA的显示率均明显高于对照组,而ASPDA、PSPDA的显示率差异不明显.④服药组胰腺动脉的显示程度"优良"率为71.7%(172/240),明显高于对照组的45.0%(90/200).⑤服药组的腹主动脉强化CT值明显高于对照组.结论舌下含服硝酸甘油可以通过增加胰腺动脉管径及腹主动脉强化CT值,提高胰腺动脉的CT成像质量.Objective To investigate the effect of nitroglycerin on pancreatic artery dilatation.Methods 36 patients with clinically suspected abdominal pain underwent CT imaging which were divided into a drug-intake group(0.5 mg nitroglycerin sublingually before examination)and a control group.The intravascular diameter of the origin of each pancreatic artery was measured using MIP.The pancreatic artery was reformatted by MIP,VR,MPR and the visualization ratio was calculated.A four-classification(from 0 to 3)was used to evaluate image quality,with a score of 2 or 3 defined as excellent.Results①The diameters of ASPDA,AIPDA,PSPDA,PIPDA,DPA,TPA,PMA and CPA in the drug-intake group were all significantly greater than that in the control group.②The overall visualization ratio for pancreatic arteries in the drug-intake group(83.4%)was significantly higher than that in the control group(69.4%).③In the drug-intake group,the higher visualization ratios for AIPDA,PIPDAfDPA,TPA,PMA and CPA were demonstrated when compared with those in the control group,whereas there was no significant difference for ASPDA and PSPDA.④The visualization ratio of pancreatic arteries in the drug-intake group exhibited an excellent rate of 71.7%(172/240),significantly higher than that in the control group at A5.0%(90/200).⑤The enhanced CT values of abdominal aorta of the drug-intake group were evidently higher than those in the control group.Conclusion Pre-CT sublingual nitroglycerin administration increases the diameter of pancreatic artery and the enhanced CT values of abdominal aorta,which improves visualization of pancreatic arteries.

关 键 词：硝酸甘油 计算机体层成像 胰腺动脉 血管扩张 

分 类 号：R972.3[医药卫生—药品] R814.42[医药卫生—药学]