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Angiotomography: what is it, what is it for and how is the previous preparation

The angiotomography is a rapid diagnostic exam that allows the perfect visualization of plaques of fat or calcium in the interior of the veins and arteries of the body, using modern equipment in 3D, very useful in the coronary and cerebral disease and which, in addition, can be be requested to evaluate blood vessels in other parts of the body.

The doctor who usually requests this exam is the cardiologist with the purpose of evaluating the behavior of the blood vessels of the heart, especially if there are other abnormal exams, such as the performance test or myocardial perfusion gammagraphy, or for an evaluation of pain in the pecho, for example.

what is it for

The angiotomography is used to clearly observe the internal and external part, diameter and compromise of blood vessels, demonstrating with clarity the presence of calcium or grease plaques in the coronary arteries, and also serves to visualize the cerebral blood flow or in any other way. another part of the body, like pulmón or riñones, for example.



This exam can even detect minor coronary calcifications, resulting from the accumulation of grease plaques inside the arteries, which could not have been identified in other imaging exams.

When can be indicated

The table below reflects some possible indications of the different types of angiotomography:

type of exam some indications
coronary angiotomography
  • In case of symptoms of heart disease.
  • Individuals with present heart diseases.
  • Coronary calcification suspicion.
  • To verify the effectiveness of a stent after an angioplasty.
  • In case of Kawasaki illness.
Cerebral arterial angiotomography
  • Evaluation of cerebral artery obstruction.
  • Brain aneurysm search, evaluation of vascular malformations.
Cerebral venous angiotomography
  • Evaluation of cerebral vein obstruction due to extrinsic reasons, thrombosis.
  • Evaluation of vascular malformations.
Pulmonary vein CT angiography
  • Pre-ablation of atrial fibrillation.
  • Post-ablation of atrial fibrillation.
Angiotomography of the abdominal aorta
  • Evaluation of vascular diseases.
  • Before putting on a prosthesis.
Thoracic aortic angiotomography
  • Vascular diseases.
  • Evaluación pre and post prothesis placement.
Angiotomography of the abdomen
  • For the evaluation of vascular diseases.

How is the exam performed?

To carry out this exam, a contrast is entered in the vessel that is to be evaluated and the person must enter a tomography equipment, which uses radiation to generate images that are visualized on the computer. In this way, the doctor can assess how the blood vessels are, if there are calcified plaques or if the flow of blood is reduced in some part.

Necessary prior preparation

The angiotomography takes an average of 10 minutes, and 4 hours before its performance, the individual should not eat or drink anything.



Medications for daily use can be taken at regular times with water. It is recommended not to take anything that contains caffeine or any medication against erectile dysfunction in the last 48 hours before the exam.

Minutes before the performance of the angiotomography, some people may need to take a medication to decrease the heart rate and another to dilate the blood vessels; with the objective of improving the visualization of cardiac images.

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Consult a Doctor | Translated by User2937

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The translator user relied on the following text:

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