Sk. Reid et al., Contrast-enhanced moving-table MR angiography: Prospective comparison to catheter arteriography for treatment planning in peripheral arterial occlusive disease, J VAS INT R, 12(1), 2001, pp. 45-53
PURPOSE: Prospective comparison of contrast-enhanced moving-table magnetic
resonance (MR) angiography to catheter arteriography in endovascular and su
rgical treatment planning in patients with peripheral arterial occlusive di
sease.
MATERIALS AND METHODS: Thirteen patients scheduled for catheter arteriograp
hy for lower extremity arterial occlusive disease underwent contrast-enhanc
ed moving-table MR angiography immediately prior to arteriography. A treatm
ent plan was determined by the vascular surgeon, based on MR angiography, w
ho was blinded to the catheter arteriogram. The treatment plan determined b
y the MR angiogram was compared to the final treatment plan, which was base
d on the catheter arteriogram and intraluminal pressure measurements.
RESULTS: Treatment plans based on MR angiography and catheter arteriography
were identical in 10 of 13 patients (71%). For identifying lesions resulti
ng in intervention, MR angiography had sensitivity of 100% and a positive p
redictive value of 92%. MR angiography had a treatment specific predictive
value of 88% for each lesion identified, and 95% for lesions identified in
patients evaluated for claudication. If treatment plans were based on MR an
giography only, 46% of patients would have avoided catheter arteriography.
CONCLUSION: Contrast-enhanced moving-table MR angiography may be an effecti
ve alternative to catheter arteriography in endovascular and surgical treat
ment planning in selected patients with peripheral arterial occlusive disea
se, but larger studies are necessary to confirm this.