The obtaining of X-ray images of veins that have been injected with a radiopaque substance. An alternative name is venography.
The study of the VEINS, particularly by means of X-rays after the veins have been injected with a radio-opaque substance.
Radiography of blood vessels made visible by injecting into them a radio-opaque substance. In the case of arteries this is known as arteriography; the corresponding term for veins being venography or phlebography. This procedure demonstrates whether there is any narrowing or ballooning of the lumen of the vessel, changes usually caused by disease or injury.... angiography
(phlebography) n. imaging of the veins. Traditionally a *radiopaque contrast medium is injected into a vein and X-ray photographs (venograms) taken as the medium flows towards the heart. Damage, obstruction, or abnormal communication with other vessels can be demonstrated. It can be done during a CT or MRI evaluation. A common usage is in demonstrating deep vein *thrombosis in the legs. Increasingly ultrasound is being used, both with colour Doppler (see Doppler ultrasound) and *compression venography. See also angiography.... venography
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