3D time-resolved contrast-enhanced MR DSA: Advantages and tradeoffs

Charles A. Mistretta*, Thomas M. Grist, Frank R. Korosec, Richard Frayne, Dana C. Peters, Yousef Mazaheri, Timothy J. Carroll

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

The 3D TRICKS method for contrast-enhanced, time-resolved MR DSA has been recently described. In this paper, computer simulations are used to investigate the relative frame rate, temporal window, artery-vein temporal separation, contrast-to-noise ratio, and spatial resolution of TRICKS and conventional scans for breath-hold and non-breath-hold applications. For non- breath-hold applications, TRICKS can be configured to provide increased CNR or spatial resolution at an increased frame rate, but with a longer temporal window when compared with a series of conventional scans in which the central portion of k-space is sampled at the same rate as for the TRICKS scans. For breath-hold applications, TRICKS typically provides three images with 75% of the conventional single acquisition spatial resolution and is more tolerant of variations in contrast curve shape within the field of view.

Original languageEnglish (US)
Pages (from-to)571-581
Number of pages11
JournalMagnetic resonance in medicine
Volume40
Issue number4
DOIs
StatePublished - Oct 1 1998

Keywords

  • Angiography
  • Contrast
  • Magnetic resonance
  • Timeresolved

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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