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ACR Appropriateness Criteria® Lower Extremity Arterial Claudication-Imaging Assessment for Revascularization: 2022
, Ezana M Azene1, Michael L Steigner2
1Director of PERT, Chair Cancer Advisory Council, Medical Governor, Gundersen Health System, La Crosse, Wisconsin.
Imaging for arterial claudication is crucial before revascularization. This guide details appropriate use of ultrasound, arteriography, MR angiography, and CT angiography for peripheral artery disease.
Area of Science:
- Vascular Medicine and Interventional Radiology
Background:
- Arterial claudication, a symptom of peripheral artery disease (PAD), necessitates careful pre-revascularization imaging.
- Optimal imaging strategies are essential for effective treatment planning and patient outcomes.
Framework:
- Evidence-based guidelines from the ACR Appropriateness Criteria inform imaging choices.
- Methodologies like GRADE and the RAND/UCLA Appropriateness Method ensure rigorous evaluation of evidence.
Implementation:
- Discusses the appropriate utilization of diagnostic imaging modalities including ultrasound, invasive arteriography, MR angiography, and CT angiography.
- Addresses scenarios with limited or equivocal literature, relying on expert consensus for recommendations.
Implications:
- Aims to standardize and optimize the selection of imaging techniques for patients with claudication.
- Supports informed decision-making in the management of peripheral artery disease.
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Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...

