High-resolution time-resolved contrast-enhanced 3D MRA by combining SENSE with keyhole and SLAM strategies

Magn Reson Imaging. 2004 Nov;22(9):1161-8. doi: 10.1016/j.mri.2004.08.025.

Abstract

Sensitivity encoding (SENSE) was combined with keyhole and selective line acquisition mode (SLAM) techniques to acquire a time series of images during contrast passage. The acquisition speed of the dynamic time frames was improved by a factor of 8 in total. The high spatial frequencies were sampled during the steady state and combined with the dynamic time frames to construct a series of high-resolution time-resolved contrast-enhanced 3D images. Filtered temporal correlation analysis was used to separate the arteries and veins.

MeSH terms

  • Carotid Arteries / anatomy & histology*
  • Contrast Media / administration & dosage*
  • Female
  • Fourier Analysis
  • Humans
  • Image Enhancement / methods*
  • Imaging, Three-Dimensional / methods*
  • Magnetic Resonance Angiography / methods*
  • Male
  • Reference Values
  • Sensitivity and Specificity
  • Time Factors
  • Veins / anatomy & histology*

Substances

  • Contrast Media