CTA
Also written as: CTA — Computed Tomography Angiography
Computed tomography angiography, a non-invasive imaging technique using contrast-enhanced CT to visualize blood vessels.
Full Definition
Computed tomography angiography (CTA) is a non-invasive imaging modality that combines CT scanning with intravenous contrast administration to create detailed images of blood vessels throughout the body. This technique allows for rapid acquisition of high-resolution vascular images and is commonly used for diagnosis of vascular diseases, pre-procedural planning, and post-intervention follow-up. CTA offers advantages over conventional angiography including lower invasiveness, reduced procedure time, and the ability to visualize surrounding anatomical structures.
Usage
Usage note: Always capitalize when used as an acronym; lowercase when spelled out except for proper nouns.
In Context
- "The radiologist recommended a CTA of the lower extremities to evaluate for peripheral arterial disease." — Radiology report
- "CTA demonstrated complete occlusion of the left anterior descending artery." — Cardiac imaging report