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Computed tomography angiography (also called CT angiography or CTA) is a computed tomography technique used for angiography—the visualization of arteries and veins—throughout the human body. Using contrast injected into the blood vessels, images are created to look for blockages, aneurysms (dilations of walls), dissections (tearing of walls ...
Coronary CT angiography (CTA or CCTA) is the use of computed tomography (CT) angiography to assess the coronary arteries of the heart.The patient receives an intravenous injection of radiocontrast and then the heart is scanned using a high speed CT scanner, allowing physicians to assess the extent of occlusion in the coronary arteries, usually in order to diagnose coronary artery disease.
A CT scan of the heart is performed to gain knowledge about cardiac or coronary anatomy. [53] Traditionally, cardiac CT scans are ... Cardiac CT angiogram 9–12 [167 ...
A CT pulmonary angiogram (CTPA) is a medical diagnostic test that employs computed tomography (CT) angiography to obtain an image of the pulmonary arteries. Its main use is to diagnose pulmonary embolism (PE). [ 1 ]
Post mortem CT angiography for medicolegal cases is a method initially developed by a virtopsy group. Originating from that project, both watery [ 16 ] and oily [ 17 ] solutions have been evaluated. While oily solutions [ 17 ] require special deposition equipment to collect waste water, watery [ 16 ] solutions seem to be regarded as less ...
FIGURE 3. Axial (left) and coronal (right) CT angiography images of the abdominal aorta evaluating for aortic aneurysm. [citation needed] CT angiography (CTA) is highly effective for evaluation of the arterial system, and has largely replaced conventional angiography due to the lower risk profile and ability to survey the entire abdomen.
Changes in anatomy: During endovascular procedures, such as the grafting of an aortic aneurysm, 3D planning can be done either on CT image acquired preoperatively or on an intraoperative 3D image acquired by rotational angiography. The CT image is usually acquired a few days or at least hours before the procedure, giving time for planning.
A physician may recommend cardiac imaging to support a diagnosis of a heart condition. Medical specialty professional organizations discourage the use of routine cardiac imaging during pre-operative assessment for patients about to undergo low or mid-risk non-cardiac surgery because the procedure carries risks and is unlikely to result in the change of a patient's management. [1]