Multidetector CT angiography

The coronaryRelating to the arteries supplying the heart itself. arteries can also be assessed by imaging that doesn't involve injecting any dye into the arteries. One way of doing this is by computed tomography (CTA scan that generates a series of cross-sectional X-ray images.) scanning.

Multidetector CTMultidetector computed tomography. A special kind of computed tomography (CT) scanning that produces more detailed images of the body. Sometimes abbreviated to MDCT. angiographyX-ray imaging of the blood vessels following the injection of a dye to improve visibility. (MDCTA) is very accurate in picking up disease of the arteries that supply the heart, and research suggests that it can be used to rule out severe disease of these arteries in the emergency department. However, it is not currently used routinely for this purpose.[1]

One problem with MDCTA is that it uses a relatively high dose of radiation. Furthermore, the usefulness of MDCTA can be limited if the person has an irregular heart rhythm, difficulty breathing or a device called a coronaryRelating to the arteries supplying the heart itself. stentA tube placed inside a tubular structure in the body, to keep it patent, that is, open. in the arteryA blood vessel that carries blood away from the heart. Apart from the pulmonary artery and umbilical artery, all arteries carry oxygenated blood. (a small coil left in place after a previous procedure to keep the walls of the arteryA blood vessel that carries blood away from the heart. Apart from the pulmonary artery and umbilical artery, all arteries carry oxygenated blood. open).[1]

References: 
  1. Detection of non-ST-elevation myocardial infarctionDeath of an area of heart muscle due to poor blood supply. and unstable anginaChest pain caused by poor blood supply to the heart that comes on unpredictably - not just during exercise. in the acuteHas a sudden onset. setting: meta-analysis of diagnostic performance of multi-detector computed tomographic angiographyX-ray imaging of the blood vessels following the injection of a dye to improve visibility.. Vanhoenacker PK, Decramer I, Bladt O et al. BMC Cardiovascular Disorders 2007;7:39.