Echo-planar time course MRI of cat brain oxygenation changes

Magn Reson Med. 1991 Nov;22(1):159-66. doi: 10.1002/mrm.1910220117.


When deoxygenated, blood behaves as an effective susceptibility contrast agent. Changes in brain oxygenation can be monitored using gradient-echo echo-planar imaging. With this technique, difference images also demonstrate that blood oxygenation is increased during periods of recovery from respiratory challenge.

MeSH terms

  • Animals
  • Apnea / physiopathology
  • Brain / blood supply*
  • Brain / physiopathology
  • Brain Death / physiopathology
  • Cats
  • Hypoxia / physiopathology
  • Magnetic Resonance Imaging / methods*
  • Oxygen / blood*


  • Oxygen