Magnetization-prepared MR angiography with fat suppression and venous saturation.

Published

Journal Article

Magnetization-prepared magnetic resonance (MR) angiography (MPMRA) is an inflow-based two-dimensional (2D) imaging sequence in which a preparation phase precedes rapid image acquisition. For maximal blood/tissue contrast, an inversion-recovery preparation nulls signal from static tissue. If needed, a second inversion suppresses signal from fat. Fully magnetized blood flows in after the inversion pulse(s), providing high signal intensity. The centric phase-encoding order, which ensures that the initial contrast is reflected in the image set, requires the use of a modified venous saturation technique. The sequence is described and its performance assessed with regard to (a) depiction of in-plane flow, (b) fat suppression, and (c) venous saturation. Phantom and volunteer studies showed good performance in all three areas. MPMRA images, acquired in just 2-4 seconds per image, had a blood/tissue contrast-to-noise ratio nearly twice that of standard 2D time-of-flight MR angiograms, acquired in 5-7 seconds. The technique is promising for restless patients and in anatomic areas plagued by motion degradation.

Full Text

Cited Authors

  • Richardson, DB; Bampton, AE; Riederer, SJ; MacFall, JR

Published Date

  • November 1992

Published In

Volume / Issue

  • 2 / 6

Start / End Page

  • 653 - 664

PubMed ID

  • 1446109

Pubmed Central ID

  • 1446109

International Standard Serial Number (ISSN)

  • 1053-1807

Language

  • eng

Conference Location

  • United States