Studying Between Compression Of The Right Iliac Vein In Asymptomatic Subjects And Patients With Iliofemoral Deep Vein Thrombosis

Objective:To evaluate right iliac vein and left iliac vein compression inasymptomatic subjects,right-sided and left-sided iliofemoral deep vein thrombosis patients.Methods:Firstly,a typical right iliac vein compression syndrome was collected in our hospital,and the results of CT examination or direct venography were analyzed Secondly,a retrospective analysis of records and computed tomography images was nalyzefconducted in 200 asymptomatic subjects(male:femedale,100:100).Last,a prospective analysis was conducted in 79 consecutive deep vein thrombosis patients(left:right deep vein thrombosis,47:32)who had undergone contrast-enhanced computed tomography examination.Theminor diameter and percentage compression of the iliac vein were evaluated.Results:In asymptomatic subjects,13.5% had right iliac vein compression >50%,2.0% had right iliac vein compression>70%,mean compression was 23.48%;45.0% had left iliac vein compression >50% and 17.0% had left iliac vein compression>70%,mean compression was 47.58%.Right iliac vein sandwiched between the right external iliac artery and the right internal iliac artery was the most common compression pattern(59.26%).In mean percentage compression of the right iliac vein,right deep vein thrombosis patients was higher than in left deep vein thrombosis patients(right:left deep vein thrombosis,48.54%:22.29%,P<0.001).In mean percentage compression of the left iliac vein,left deep vein thrombosis patients was higher than right deep vein thrombosis patients(left:right deep vein thrombosis,71.88%:45.83%,P<0.001).Conclusion:Similar to left iliac vein compression,right iliac vein compression was a frequent imaging finding in CT and represented a normal anatomic pattern.Right iliac vein is sandwiched between the right external iliac artery and the internal iliac artery is the most common way right iliac vein compression.In asymptomatic subjects severe right iliac vein compression lower incidence of severe left iliac vein compression rate.Right deep vein thrombosis patients had more serious right iliac vein compression...