Lower extremity CT angiography in peripheral arterial disease: from the established approach to evolving technical
Omar Shwaiki1, Basem Rashwan1, Matthias A Fink2
1Department of Interventional Radiology, Cleveland Clinic Main Campus, Cleveland, OH, USA.
The International Journal of Cardiovascular Imaging
|May 17, 2021
Summary
Multidetector computed tomography angiography (CTA) offers a fast, noninvasive method for imaging peripheral artery disease (PAD). This technique effectively visualizes lower extremity arteries, assessing disease extent and differentiating acute from chronic changes.
Area of Science:
- Radiology
- Vascular Imaging
- Medical Diagnostics
Background:
- Multidetector computed tomography (CT) has advanced noninvasive arterial imaging.
- Peripheral artery disease (PAD) affects lower extremity vasculature.
- Accurate imaging is crucial for PAD diagnosis and management.
Purpose of the Study:
- To provide an overview of imaging techniques for PAD.
- To discuss the specific use of peripheral extremity CT angiography (CTA) in PAD patients.
- To cover clinical indications, technical aspects, and postprocessing of peripheral CTA.
Main Methods:
- Review of current literature and established practices in peripheral CTA.
- Discussion of technical considerations including contrast and radiation dose.
- Exploration of postprocessing techniques and structured reporting.
Main Results:
- Peripheral extremity CTA is a rapid, high-resolution technique for lower extremity arterial imaging.
- CTA can delineate the arterial tree, quantify atherosclerotic disease, and distinguish acute from chronic PAD.
- Advancements in CTA reduce contrast and radiation exposure.
Conclusions:
- Peripheral extremity CTA is a valuable tool for noninvasive assessment of PAD.
- The technique aids in clinical decision-making for PAD patients.
- Ongoing technical developments continue to enhance its utility and safety.
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