Tracking motion with tagged rapid gradient‐echo magnetization‐prepared MR imaging

Mamoru Niitsu, Norbert G. Campeau, Anna E. Holsinger‐Bampton, Stephen J. Riederer, Richard L. Ehman

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

A technique for rapid assessment of tissue motion was developed by combining spatially selective radio‐frequency tagging pulses with centric phase‐encoding view ordering in a T1‐weighted, magnetization‐prepared gradient‐echo acquisition sequence. This sequence allowed labeling and tracking of tissue motion with single‐image acquisition times of less than 3 seconds. Multiple tagged bands 3 mm thick were superimposed orthogonal to the imaging plane. Motion in the interval between tagging and the start of image acquisition could then be precisely determined. The technique was evaluated with phantom studies and then applied to human volunteers for assessment of skeletal muscle motion, phonation, and pelvic floor motion.

Original languageEnglish (US)
Pages (from-to)155-163
Number of pages9
JournalJournal of Magnetic Resonance Imaging
Volume2
Issue number2
DOIs
StatePublished - Jan 1 1992

Keywords

  • Magnetic resonance (MR), experimental studies
  • Motion studies
  • Phantoms
  • Pulse sequences
  • Rapid imaging

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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