3D coronary MR angiography in multiple breath‐holds using a respiratory feedback monitor

Yi Wang, Roger C. Grimm, Phillip J. Rossman, Josef P. Debbins, Stephen J. Riederer, Richard L. Ehman

Research output: Contribution to journalArticlepeer-review

95 Scopus citations

Abstract

To reduce respiratory blur and ghosts in 3D coronary imaging, a data acquisition scheme using consistent multiple breath‐holds was implemented. A navigator echo was acquired and processed in real time to dynamically measure diaphragm position. This information was provided as a visual prompt to the patient to maintain consistency in breath‐hold levels such that the variation range of diastolic heart position was less than 2 mm. Preliminary results indicate that this multiple breath‐hold acquisition scheme, compared with acquisition under respiration, can significantly reduce blur and ghost artifacts in 3D coronary imaging.

Original languageEnglish (US)
Pages (from-to)11-16
Number of pages6
JournalMagnetic Resonance in Medicine
Volume34
Issue number1
DOIs
StatePublished - Jul 1995

Keywords

  • cardiac imaging
  • coronary magnetic resonance angiography
  • image artifacts
  • respiratory motion

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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