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Radiology, Vol 159, 411-418, Copyright © 1986 by Radiological Society of North America

ARTICLES

MR gated subtraction angiography: evaluation of lower extremities

RA Meuli, VJ Wedeen, SC Geller, RR Edelman, LR Frank, TJ Brady and BR Rosen

We report the first clinical experience with a new method for projective imaging of blood vessels (angiography) using magnetic resonance. Vascular contrast is produced noninvasively by the phase response of moving protons. Diastolic and systolic gated images produce, respectively, flow signal and flow void; the difference image is a map of the pulsatile flow: an arteriogram. Preliminary studies are presented of the lower extremities of one healthy volunteer and four patients (one each with occlusive disease, soft-tissue tumor, arteriovenous malformation, and venous femoral-popliteal graft). Patient data are compared with accompanying conventional arteriograms, and the new method is discussed.


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