The aim of this study was to evaluate intra-arterial magnetic resonance angiography (MRA) of the iliac arteries. Therefore, 25 consecutive @entity1 (17 male, 8 female) suffering from @entity432 of the lower limbs were investigated prospectively. Catheter angiography was performed before MRA and served as the standard of reference. Contrast-enhanced intra-arterial MRA was performed using a 1.5 Tesla MRI system. Contrast agent ( @entity5777 ) was injected by a conventional pigtail-shaped angiography catheter placed in the abdominal aorta. @entity455 were assessed by four investigators. The degree of @entity850 was compared with the findings of conventional catheter angiography. Additionally, the diagnostic quality of the MR angiograms was assessed by the investigators using a semi quantitative five-point scale. All lesions shown by catheter angiography were detected and correctly localized by intra-arterial MRA. MR angiograms exhibit a specificity of 95% and a sensitivity of 96% for stenoses of 50% or more. The diagnostic quality of the images was judged from good to excellent, on average. Intra-arterial MRA exhibits a specificity and sensitivity comparable with intravenous angiography. The image quality appears to be adequate for supporting MR-guided vascular intervention.

Intra-arterial MR angiography in the iliac system: initial clinical experience with 25 XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity455 :: ('MESH:D014652', 'Disease') :: ['Vascular lesions'] @entity5777 :: ('MESH:C064925', 'Chemical') :: ['gadodiamide'] @entity432 :: ('MESH:D001157', 'Disease') :: ['symptomatic occlusive disease'] @entity850 :: ('MESH:D003251', 'Disease') :: ['stenosis']
@entity1 :: (9606,Species) :: ['patients']
