Mechanisms responsible for the MR appearance and evolution of intracranial hemorrhage

Radiographics. 1988 May;8(3):427-40. doi: 10.1148/radiographics.8.3.3380989.

Abstract

The sequential degradation of hemoglobin in an evolving hemorrhage has been reviewed. Physical mechanisms of proton relaxation enhancement that contribute to the clinical MR appearances of hemorrhage have been described, and the dependence of relaxation rates on field strength and interecho interval in spin-echo imaging techniques has been defined.

MeSH terms

  • Acute Disease
  • Cerebral Hemorrhage / blood
  • Cerebral Hemorrhage / diagnosis*
  • Cerebral Hemorrhage / physiopathology
  • Chronic Disease
  • Hemoglobins / metabolism
  • Humans
  • Iron / blood
  • Magnetic Resonance Imaging*
  • Magnetics
  • Methemoglobin / metabolism
  • Oxyhemoglobins / metabolism

Substances

  • Hemoglobins
  • Oxyhemoglobins
  • deoxyhemoglobin
  • Methemoglobin
  • Iron