Cardiac computed tomography: Difference between revisions

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== Calcium scoring ==
== Calcium scoring ==
Calcium scoring refers to using non-contrast CT to evaluate the amount of calcium in the coronary artery walls, giving a coronary artery calcium (CAC) score. Calcium scoring can be performed during the non-contrast phase of coronary CT angiography or separately. The score is called Agatston score.
Calcium scoring refers to using non-contrast CT to evaluate the amount of calcium in the coronary artery walls, giving a coronary artery calcium (CAC) score. Calcium scoring can be performed during the non-contrast phase of coronary CT angiography or as a separate examination. The score is called Agatston score.


Calcium scoring is used in those with intermediate pretest probability for coronary artery disease. It gives a score which represent different severity of coronary artery disease:
Calcium scoring is used in those with intermediate pretest probability for coronary artery disease. It gives a score which represents the severity of the patient's coronary artery disease:
{| class="wikitable"
{| class="wikitable"
|+
|+
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|Mild
|Mild
|-
|-
|101-400
|101-300
|Moderate
|Moderate
|-
|-
|>400
|>300
|Severe
|Severe
|}
|}