<unk>  or arteriography is a medical imaging technique used to visualize the inside, or lumen, of blood vessels and organs of the body, with particular interest in the arteries, veins, and the heart chambers. This is traditionally done by injecting a radio-opaque contrast agent into the blood vessel and imaging using X-ray based techniques such as fluoroscopy. The word itself comes from the Greek words ἀγγεῖον<unk> n 'vessel' and γράφειν graphein 'to write, record'. The film or image of the blood vessels is called an<unk>  or more commonly an<unk> gram. Though the word can describe both an arteriogram and a venogram, in everyday usage the terms<unk> gram and arteriogram are often used synonymously, whereas the term venogram is used more precisely. The term<unk>  has been applied to radionuclide<unk>  and newer vascular imaging techniques such as CO2<unk> , CT<unk>  and MR<unk> . The term isotope<unk>  has also been used, although this more correctly is referred to as isotope perfusion scanning.
Angiography
Angiology
Magnetic resonance angiography
Radionuclide angiography
Microangiography
Radiochemistry
Synthetic MRI
Biomedical spectroscopy