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Three-Dimensional CT Venography of Varicose Veins of the Lower Extremity: Image Quality and Comparison with Doppler Sonography

Whal Lee1, Jin Wook Chung1, Yong Hu Yin1, Hwan Jun Jae1, Sang Joon Kim2, Jongwon Ha2 and Jae Hyung Park1

1 Department of Radiology, Institute of Radiation Medicine, Seoul National University College of Medicine, Seoul National University Medical Research Center, Clinical Research Institute, Seoul National University Hospital, 28 Yongon-dong, Chongno-gu, Seoul 110-744, Republic of Korea.
2 Department of General Surgery, Seoul National University College of Medicine, Seoul National University Medical Research Center, Clinical Research Institute, Seoul National University Hospital, Seoul, Korea.


Figure 1
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  		Fig. 1A —43-year-old woman with varicose veins. Three-dimensional volume-rendered image produced at opacity–transparency function setting for superficial visualization shows enlarged right great saphenous vein (arrow) and tortuous varicose vein in medial aspect of thigh and calf. Varicose vein pathway is situated along superficial duplication of right great saphenous vein.

 

Figure 2
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  		Fig. 1B —43-year-old woman with varicose veins. Volume-rendered image shows enlarged superficial duplication (arrow) and unenlarged midsegment of main great saphenous vein in its original location (arrowhead).

 

Figure 3
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  		Fig. 1C —43-year-old woman with varicose veins. Axial CT scan at level of patella shows unenlarged segment of right great saphenous vein in its original location in saphenous vein space (arrowhead) and enlarged superficial duplication pathway (arrow) of right great saphenous vein.

 

Figure 4
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  		Fig. 2A —51-year-old woman with varicose veins. Three-dimensional volume-rendered image obtained at opacity–transparency function setting for muscle planes shows enlarged left great saphenous vein (black arrow) and tortuous varicose veins (asterisk). Perforating veins are vividly shown, and paratibial (white arrow) as well as posterior tibial (arrowhead) perforating veins are evident.

 

Figure 5
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  		Fig. 2B —51-year-old woman with varicose veins. Left posterior oblique 3D volume-rendered image shows medial gastrocnemius perforating veins (arrow) and posterior tibial perforating vein (arrowhead).

 

Figure 6
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  		Fig. 3 —Scatterplot shows great saphenous vein dimensions obtained with CT and Doppler sonography.

 

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