Cardiac fat navigator-gated steady-state free precession 3D magnetic resonance angiography of coronary arteries Academic Article uri icon

Overview

MeSH Major

  • Adipose Tissue
  • Coronary Angiography
  • Coronary Vessels
  • Heart
  • Imaging, Three-Dimensional
  • Magnetic Resonance Angiography

abstract

  • Motion artifacts and the lack of accurate detection of cardiac motion present a major challenge for high-resolution cardiac MRI. Recently a multidimensional cardiac fat navigator was proposed to provide a fast and direct measurement of bulk cardiac motion. The objective of this study was to demonstrate the feasibility of employing the cardiac fat navigator in balanced steady-state free precession (SSFP) free-breathing 3D coronary MRA (CMRA). The cardiac fat navigator echo is optimized to provide both motion monitoring and epicardial fat suppression. Steady-state magnetization preparation, which is needed for SSFP CMRA, is optimized by comparing three preparation schemes: alpha/2, linear ramp with 20 RF pulses (20LR), and Kaiser ramp with six RF pulses (6KR). The present preliminary human study shows that the 6KR preparation provides better image quality than both the alpha/2 (P<0.0025) and the 20LR preparations (P<0.025) for free-breathing SSFP 3D CMRA (N=11).

publication date

  • July 2006

Research

keywords

  • Academic Article

Identity

Language

  • eng

Digital Object Identifier (DOI)

  • 10.1002/mrm.20938

PubMed ID

  • 16767743

Additional Document Info

start page

  • 210

end page

  • 5

volume

  • 56

number

  • 1