Cardiac magnetic resonance fluoroscopy

Josef P. Debbins, Stephen J. Riederer, Phillip J. Rossman, Roger C. Grimm, Joel P. Felmlee, Jerome F. Breen, Richard L. Ehman

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

A technique is described for high speed interactive imaging of the heart with either white or black blood contrast. Thirty-two views of a segmented, magnetization-prepared gradient echo sequence are acquired during diastole. Using three-quarter partial Fourier sampling, data for a complete 128 x 128 image are acquired in three cardiac cycles. High speed reconstruction provides an image update of each cardiac cycle 159 ms after measurement. An independent graphical user interface facilitates interactive control of section localization and contrast by permitting pulse sequence parameter modification during scanning. The efficiency and image quality of the cardiac MR fluoroscopy technique were evaluated in 11 subjects. Compared with the conventional graphic prescription method, the cardiac fluoroscopy technique provides an approximate eightfold reduction in the time required to obtain subject-specific double oblique sections. Image quality for these scout acquisitions performed during free breathing was sufficient to identify small cardiac structures.

Original languageEnglish (US)
Pages (from-to)588-595
Number of pages8
JournalMagnetic Resonance in Medicine
Volume36
Issue number4
DOIs
StatePublished - Oct 1996

Keywords

  • MR fluoroscopy
  • cardiac MRI
  • high speed MRI
  • interactive MRI

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Fingerprint Dive into the research topics of 'Cardiac magnetic resonance fluoroscopy'. Together they form a unique fingerprint.

Cite this