不同监测点在64层螺旋 CT肺动脉智能触发成像中的应用价值  

Evaluation of different monitoring points in pulmonary artery intelligence trigger imaging with 64-slice spiral CT

作　　者：徐志超[1] 曹志坚[1] 卜阳阳[1] 丁国苗[1] 钟平 

机构地区：[1]浙江省中医院医学影像科,浙江杭州310009

出　　处：《实用放射学杂志》2014年第12期2068-2071,共4页Journal of Practical Radiology

摘　　要：目的：评价不同监测点在64层螺旋 CT 肺动脉成像中的应用价值。方法将行肺动脉 CT 成像的60例患者随机分成3组,监测点 A 组设在上腔静脉,B 组设在肺动脉主干,C 组设在右心房,采用智能触发,监测值分别设为100 HU,40 HU 和40 HU,分别测量肺动脉主干、肺静脉、升主动脉 CT 值,并进行配对 t 检验。结果A、B、C 3组的肺动脉 CT 值比较有统计学意义（P 〈0.05）,C 组的肺动脉 CT 值及成功率都最高。结论对于64层螺旋 CT 的肺动脉成像,监测设在右心房时肺动脉成像效果更好,值得推广应用。Objective To evaluate the value of different monitoring point in pulmonary angiography in 64-slice spiral CT.Methods 60 patients of pulmonary artery CT were randomly divided into 3 groups （A,B,C）,the monitoring point of group A was moni-tored at the superior vena cava,group B was monitored at the main pulmonary artery,and group C was monitored at the right atri-um.Using the intelligent trigger,the monitoring threshold values were set with 100 HU,40 HU,and 40 HU respectively,to measured the CT value in the main pulmonary artery,the ascending aorta,and pulmonary vein.The data were analyzed by pired t-test.Results The pulmonary CT value of the three groups （group A,B,C）was statistically significant （P 〈0.05）.Pulmonary CT value of group C and the success rate were the highest among three groups.Conclusion With the pulmonary angiography of 64-slice spiral CT,monitoring point of pulmonary artery imaging located in the right atrium is better,which could be applied widely.

关 键 词：肺动脉 计算机体层成像 血管造影术 

分 类 号：R563[医药卫生—呼吸系统] R814.42[医药卫生—内科学]