text: <unk>  is the gold standard to diagnose venous thrombosis, however it is not the preferred test in clinical settings. It includes injection of contrast into the dorsal foot vein and checking for a intraluminal filling defect that is present in more than one view.
option_0: Deep vein thrombosis venography
option_1: Varicose veins ultrasound
option_2: Varicose veins CT
option_3: Varicose veins MRI
option_4: Deep vein thrombosis ultrasound
option_5: Deep vein thrombosis CT
option_6: Deep vein thrombosis MRI
option_7: Peripheral arterial disease ultrasound