Ascending lower-limb phlebography: a comparative study of Hexabrix 320, iohexol 300 and iohexol 240.

A prospective, randomised study on 60 legs in 45 patients examined by ascending lower-limb phlebography was conducted to compare Hexabrix 320 (May and Baker Ltd), iohexol 300 and iohexol 240. The quality of opacification of the veins, side-effects, cost and amount of contrast agent used were compared. All three agents produced adequate examinations. Iohexol 300 was preferred for its denser opacification. Iohexol 240 was associated with the lowest incidence of side-effects and Hexabrix 320 cost the least per examination.