Blood MR signal suppression by preexcitation with inverting pulses

Radiology. 1989 Oct;173(1):269-71. doi: 10.1148/radiology.173.1.2781019.

Abstract

A cardiac-gated sequence has been developed for functional cardiac imaging. It uses a nonselective 180 degrees preinverting pulse before a spin-echo (SE) readout sequence with an echo time (TE) of 28 msec. In seven healthy volunteers this sequence provided superior wall-to-chamber contrast in end diastole and end systole when compared with the following sequences: SE, TE = 28 msec; SE, TE = 28 msec with dephasing gradients; and SE, TE = 28 msec with presaturation bands.

MeSH terms

  • Adult
  • Blood Flow Velocity
  • Blood*
  • Heart / physiology*
  • Humans
  • Magnetic Resonance Imaging / methods*
  • Myocardial Contraction