Single breath-hold multi-slab and cine cardiac-synchronized gadolinium-enhanced three-dimensional angiography

Magn Reson Imaging. 2001 Dec;19(10):1267-74. doi: 10.1016/s0730-725x(01)00455-6.

Abstract

The rest period of the coronary arteries has been shown to be on the order of 120-160 msec. Restriction of the acquisition window in breath-hold cardiac-synchronized gadolinium-enhanced imaging to this duration limits the amount of sampled k-space data and hence the information when compared with conventional gadolinium-enhanced imaging. Two techniques for gadolinium-enhanced cardiac-synchronized angiography were implemented that acquire additional data during the unused portions of the cardiac cycle. Data acquisition is synchronized with the heart cycle and is restricted to a short period of each heart cycle. In a single breath-hold, a multi-slab acquisition (n = 5) allowed ECG-synchronized imaging of the entire heart or a CINE acquisition (n = 5) provided multiple stacks of images at different phases in the cardiac cycle over a smaller area. Preliminary results acquired in healthy volunteers and patients with aortic disease indicate that additional information can be acquired without an increase in breath-hold duration or a reduction in image quality.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Cineangiography / methods*
  • Contrast Media*
  • Coronary Angiography / methods*
  • Gadolinium DTPA*
  • Heart / physiology
  • Humans
  • Imaging, Three-Dimensional
  • Magnetic Resonance Angiography / methods*
  • Middle Aged
  • Respiration
  • Time Factors

Substances

  • Contrast Media
  • Gadolinium DTPA