Noninterleaved velocity encodings for improved temporal and spatial resolution in phase-contrast magnetic resonance imaging

J Comput Assist Tomogr. 2010 Jul;34(4):570-4. doi: 10.1097/RCT.0b013e3181d564e8.

Abstract

A segmented k-space acquisition technique using noninterleaved velocity encodings is presented to reduce spatial and temporal blur in phase-contrast cardiovascular magnetic resonance imaging. A translating phantom with pulsatile flow was used to simulate imaging of coronary arteries on a 1.5-T GE Echospeed scanner, using both interleaved and noninterleaved velocity encodings. The results demonstrate that the use of noninterleaved velocity encodings reduces spatial and temporal blur by improving the temporal resolution.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Computer Simulation
  • Coronary Vessels / pathology*
  • Coronary Vessels / physiopathology*
  • Humans
  • Image Enhancement / methods*
  • Magnetic Resonance Imaging / methods*
  • Microscopy, Phase-Contrast
  • Models, Cardiovascular*
  • Phantoms, Imaging
  • Pulsatile Flow