Protonenrelaxationsverhalten menschlicher und tierischer Gewebe in vitro, Änderungen bei Autolyse und Fixierung

Authors:
  • WGW. Grodd
    W. Grodd
  • WSW. Schmitt
    W. Schmitt
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Abstract
The results of measurements of proton relaxation times of various tissues from rats, pigs and humans are reported; these were obtained by a resonance spectroscope at 20 MHz and 40 degrees C. There were specific differences in both relaxation times (T1 and T2) of the liver and spleen. There was a difference of more than 150 ms in the longitudinal relaxation time between grey and white cerebral tissue. Autolytic changes show an increase in both relaxation times. Fixation produced a reduction in T1 only. The significance of these findings for NMR tomography is discussed.