CT angiography of peripheral arterial occlusive disease

Peripheral arterial disease — the narrowing of the arteries to the legs — needs a map before it can be treated. This review makes the case for CT angiography as that map.

The authors lay out how lower-extremity CTA produces fast, high-resolution, non-invasive images of the leg arteries, with diagnostic accuracy strong enough to plan treatment. They are candid about its weak spots: heavy calcification can obscure the channel of the vessel, and the sheer size of the image datasets demands expertise to read well.

The practical takeaway is to reach for CTA as a primary PAD workup, sparing many patients invasive catheter angiography. The resistance comes from clinicians anchored to digital subtraction angiography or ultrasound by training and workflow.

We rate the evidence low: a short (24-reference) narrative review by recognized experts, summarizing technique rather than generating data, and now nearly two decades old in a fast-moving imaging field. Its clinical significance is modest — a sensible imaging-strategy guide whose advantages over the alternatives are incremental rather than transformative for how patients fare.