Magnetic Resonance Imaging of Angiographically Occult Runoff Vessels in Peripheral Arterial Occlusive Disease

Abstract

MR angiography is a noninvasive technique with greater sensitivity than conventional contrast arteriography for detecting distal runoff vessels in patients with peripheral arterial occlusive disease.

Blinded-reader comparison of magnetic resonance angiography and duplex ultrasonography for carotid artery bifurcation stenosis.

“…This property of 2D TOF MRA has recently been shown to be clinically important in evaluating slow flow in arteriographically occult runoff vessels of the leg. 30 These phenomena are reflected in our experience with 2D TOF MRA of the carotid arteries. Review of MRA indicates magnetic resonance angiography; DUS, duplex uitrasonography.…”

Magnetic Resonance Angiography for the Evaluation of Lower Extremity Arterial Disease

“…40,[57][58][59] Some consider arteriography inappropriate as a reference standard for these arteries and prefer intraoperative angiography. However, the incidence of angiographically occult patent vessels varies between centers.…”

“…Several studies compared treatment plans made by different observers based on arteriography and MRA. 10,20,25,36,41,[57][58][59][60][61][62][63][64] When MR angiograms were technically adequate, the concordance in proposed interventions exceeded 85%. Studies designed as such remain hypothetical because clinical decision making is subject to interindividual variability.…”

Magnetic Resonance Angiography

“…Surgical plans were also changed on the basis of the additional information obtained from MRA. The results of the study by Owen et al 124 provoked much discussion 113,[125][126][127] and led to several follow-up investigations. In a study of 51 patients, Carpenter et al 128 found that in 48% of vessel segments, MRA demonstrated information that was not present on CA.…”