Three-dimensional flow-independent peripheral angiography MAGNETIC RESONANCE IN MEDICINE Brittain, J. H., Olcott, E. W., Szuba, A., Gold, G. E., Wright, G. A., Irarrazaval, P., Nishimura, D. G. 1997; 38 (3): 343-354


A magnetization-prepared sequence, T2-Prep-IR, exploits T1, T2, and chemical shift differences to suppress background tissues relative to arterial blood. The resulting flow-independent angiograms depict vessels with any orientation and flow velocity. No extrinsic contrast agent is required. Muscle is the dominant source of background signal in normal volunteers. However, long-T2 deep venous blood and nonvascular fluids such as edema also contribute background signal in some patients. Three sets of imaging parameters are described to address patient-specific contrast requirements. A rapid, spiral-based, three-dimensional readout is utilized to generate high-resolution angiograms of the lower extremities. Comparisons with x-ray angiography and two-dimensional time-of-flight angiography indicate that this flow-independent technique has unique capabilities to accurately depict stenoses and to visualize slow flow and in-plane vessels.

View details for Web of Science ID A1997XW16200001

View details for PubMedID 9339435