What is the role of CT angiography (CTA) in the workup of peripheral vascular disease (PVD)?

Updated: Dec 31, 2017
  • Author: Everett Stephens, MD; Chief Editor: Erik D Schraga, MD  more...
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Answer

CT angiography (CTA) and magnetic resonance angiography (MRA) represent significant developments in axial imaging of PVD. Benefits of CTA include rapid noninvasive acquisition, wide availability, high spatial resolution, and the ability to generate isotropic datasets on 64-detector-row and higher CT scanners; drawbacks include the exposure to iodinated contrast and ionizing radiation. Benefits of MRA include high diagnostic accuracy and the avoidance of exposure to ionizing radiation; drawbacks include limited availability and increased cost. [13]


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