河北医学2018，Vol.24Issue(1)：73-77,5.DOI:10.3969/j.issn.1006-6233.2018.01.018
多排螺旋CT直接法下腔静脉CTV成像造影剂注射方案的研究及临床意义
The study and clinical significance of contrast medium injection way of direct inferior vena cava CTV by multi-slice CT
摘要
Abstract
Objective:By comparing the image quality of the inferior vena cava ( IVC ) direct CT venography ( CTV) using multi-slice computed tomography ( MSCT) , under different contrast medium injec-tion concentrations,delay scan times conditions, to obtain optimal contrast medium injection way. Methods:Using 64-detector row scanner ( Sensation 64;Siemens) , 56 patients who were suspected of inferior vena cava diseases underwent IVC direct CTV examination, Randomly divided into 8 groups. At the same conditions of contrast medium rate(3.5～4.0mL/s), liquid volume (unilateral liquid volume 200mL), delay scan time( 30s) , the contrast medium concentrations of each group were 1:2、1:4、1:6、1:9, compare the image quality of the four groups. At the same conditions of contrast medium rate(3.5～4.0mL/s), contrast medium concen-trations(1:4～1:6), liquid volume (unilateral liquid volume 200mL), dual phase scan, the firs phase de-layed scan time of the four experimental groups were 20s、25s、30s、35s respectively, after 20s scan repeatedly. Collecting 25s、30s、35s、40s、45s imaging data, then compare the image quality. Result:The image quality of the four contrast medium concentration groups are not all the same ( H=19.727, P<0.001) ,1:4～1:6 groups is better than others;The image quality of delay scan times is not all the same ( H=22.262, P<0.001) , 30s～40s phases is the best. Conclusion:IVC direct CTV using MSCT is feasible, at the same conditions of contrast medium rate (3.5～4.0mL/s), liquid volume (unilateral liquid volume 200mL), the best concentration is 1:4～1:6, the best delay scan time is 30s～40s. It can obtain better image quality and be used to diagnose the IVC diseases.关键词
下腔静脉/直接法/多排螺旋CT/造影剂Key words
inferior vena cava/direct CTV/Multi-slice spiral CT/contrast medium引用本文复制引用
曹宏伟,邢媛媛,仇恒志,万立野,曹振东,白雪冬,吴薇娜..多排螺旋CT直接法下腔静脉CTV成像造影剂注射方案的研究及临床意义[J].河北医学,2018,24(1):73-77,5.基金项目
承德市科学技术与发展计划项目,(编号:20157059) （编号:20157059）
