1) Arthrography 
Venography (also called phlebography or ascending phlebography) is a procedure in which an x-ray of the veins, a venogram, is taken after a special dye is injected into the bone marrow or veins. The dye has to be injected constantly via a catheter, making it an invasive procedure. Normally the catheter is inserted by the groin and moved to the app...
injecting radioactive material into veins for medical examination
A procedure in which an x-ray of the veins is taken after a special dye is injected into the bone marrow or veins.
<investigation> A special X-ray of the veins that is performed by first injecting a radiopaque contrast (shows up on X-ray) into the vein in question and then taking a conventional X-ray. Used to demonstrate a blockage of a vein. Commonly used in the lower extremities to diagnose deep venous thrombosis. ... (27 Sep 1997) ... 
(ve-nog´rә-fe) phlebography.
Visualisation of veins by x-ray after injecting a radio-opaque contrast medium.
Type: Term Pronunciation: vē-nog′ră-fē Definitions: 1. Radiographic demonstration of a vein, after the injection of contrast medium. Synonyms: phlebography2
[n] - roentgenographic examination of veins
an X-ray procedure for viewing veins 
noun roentgenographic examination of veins