OBJECTIVES: This study was conducted in order to compare a high resolution, non-contrast-enhanced MRA (NATIVE SPACE, NE-MRA) of the pedal vasculature with contrast-enhanced MRA (CE-MRA) and digital subtraction angiography (DSA) in @entity1 with peripheral @entity432 (PAOD). METHODS: The prospective study consists of 20 PAOD @entity1 . All @entity1 underwent percutaneous transluminal angioplasty or stenting and received MR angiographies the following day. RESULTS: With CE-MRA, 75.7  % of vessel segments showed good, 16.4  % suboptimal and 7.9  % not usable image quality. With NE-MRA, 64.6  % showed good, 18.6  % suboptimal and 16.8  % not usable image quality. CE-MRA showed a sensitivity and negative predictive value of 90  %/95  % regarding significant stenosis (greater than 50  %), and specificity and positive predictive value were 88  %/77  %. Accordingly, sensitivity and negative predictive value for the NE-MRA were 96  %/97  % and specificity and positive predictive value were 80  %/69  % for stenoses greater than 50  %. CONCLUSIONS: The applied NE-MRA technique achieves high diagnostic accuracy even in very small distal arteries of the foot. However, the rate of non-diagnostic vessel segments is considerably higher for NE-MRA than for CE-MRA. NE-MRA is a valuable alternative to CE-MRA in selected @entity1 . KEY POINTS:     Comparison of non-enhanced MRA with contrast-enhanced MRA and DSA as gold standard.     High resolution MRA at 3  T for the depiction of small pedal vessels.     Evaluation of high resolution non-enhanced MRA in PAOD @entity1 .

Non-enhanced, ECG-gated MR angiography of the pedal vasculature: comparison with contrast-enhanced MR angiography and digital subtraction angiography in peripheral XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity432 :: ('MESH:D001157', 'Disease') :: ['arterial occlusive disease']
@entity432 :: (MESH:D001157,Disease) :: ['arterial occlusive disease']
