ABSTRACT
Objective Toinvestigatetheeffectofpressureandnon-pressureonthedirectimagingoflowerlimbdeepveinswith CTvenography(CTV).Methods 100patients(50malesand50females,aged30－80yearsold,mean (63.5±13.5yearsold)with suspectedlowerextremityvenousdiseasesfrom September2015to October2018 wereretrospectivelyanalyzed.50patientswere scannedafterpressingtheankle(controlgroup),andtheother50werescannedwithoutpressingtheankle(experimentalgroup).Results Therewerenosignificantdifferencesbetweenthecontrolandexperimentalgroupsintheauxiliaryveinscore (t＝－0.20,P＝0.82), femoralveinscore(t＝－0.1,P＝0.91),andtotaliliacveinscore(t＝－0.03,P＝0.97).Conclusion CTV withoutpressingtheankle demonstratescomparableefficacytodirectimagingoflowerlimbdeepveins,withgoodimagequality,reducedcomplicationsandeasy toapply,sothatitshouldbewidelyusedinclinicalpractice.