Abstract:
PURPOSE:To develop a bilateral femoral magnetic resonance (MR) angiographic examination that would include the aortic bifurcation to the ankle. MATERIALS AND METHODS:Thirty-seven patients underwent conventional angiography and the bilateral femoral MR angiographic examination. Two-dimensional time-of-flight angiography was used for all studies. RESULTS:The femoral MR angiogram could have replaced the conventional angiogram in 57% of patients (21 of 37). In 43% of patients (16 of 37), the femoral MR angiogram could not have replaced the conventional angiogram. Reasons for diagnostic failure with femoral MR angiography included artifact from vascular clips (n = 8) or prosthetic joints (n = 3), overlooked distal aortic stenosis (n = 1), and suboptimal definition of vessels (usually trifurcation vessels) owing to various causes (n = 8). Seven of the patients in this group had bypass grafts. CONCLUSION:Some of the current limitations of femoral MR angiography could be avoided by supplemental duplex sonography around prostheses and vascular clips. The other limitations will require advances in MR imaging techniques.
journal_name
Radiologyjournal_title
Radiologyauthors
Quinn SF,Demlow TA,Hallin RW,Eidemiller LR,Szumowski Jdoi
10.1148/radiology.189.1.8372190subject
Has Abstractpub_date
1993-10-01 00:00:00pages
181-4issue
1eissn
0033-8419issn
1527-1315journal_volume
189pub_type
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