Coronary artery imaging: 3D segmented k-space data acquisition with multiple breath-holds and real-time slab following

Steven M. Shea, Randall M. Kroeker, Vibhas Deshpande, Gerhard Laub, Jie Zheng, J. Paul Finn, Debiao Li

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

The purpose of this work was to develop a multiple-breath-hold (BH) imaging method for coronary arteries in which a segment of k-space is acquired in each BH. The goal was to increase the resolution, or the signal-to-noise ratio (SNR) and coverage, of three-dimensional-(3D)-BH volume-targeted scanning (VCATS). To correct for slab position differences, a real-time slab following technique using navigator echoes for motion detection was used. Sixteen normal volunteers were imaged to compare the method with a single-BH scan. Results showed that higher resolution, or larger coverage and higher SNR, were achieved by the multiple-BH method without respiratory motion artifacts. In conclusion, 3D segmented k-space data acquisition with multiple-BHs and real-time slab following is a promising approach for extending the capabilities of VCATS further. J. Magn. Reson. Imaging 2001;13:301-307.

Original languageEnglish
Pages (from-to)301-307
Number of pages7
JournalJournal of Magnetic Resonance Imaging
Volume13
Issue number2
DOIs
StatePublished - Feb 3 2001
Externally publishedYes

Keywords

  • Coronary vessels
  • Magnetic resonance angiography
  • Navigator echoes
  • Respiratory motion

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