What is the role of imaging studies in the workup of peripheral arterial occlusive disease (PAOD)?

Updated: Mar 08, 2021
  • Author: Josefina A Dominguez, MD; Chief Editor: Vincent Lopez Rowe, MD  more...
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The following radiologic studies may be used to evaluate suspected PAOD:

  • Angiography - The criterion standard for arterial imaging in the diagnosis of PAOD; usually reserved for when an intervention (either endovascular or traditional open surgery) is planned
  • Magnetic resonance angiography (MRA) - Useful for imaging large and small vessels
  • Computed tomography angiography (CTA) - Used to image arterial disease but requires large amount of contrast media and an upgraded CT scanner to reconstruct helpful images
  • Duplex ultrasonography - Evaluates status of a patient’s vascular disease and provides information about hemodynamics; is noninvasive and requires no contrast media but is highly technician-dependent

See Workup for more detail.

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