[Proton relaxation characteristics of human and animal tissue in vitro. Changes during autolysis and fixation].
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.
D000818:Animals; D001329:Autolysis; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D013552:Swine; D014021:Tissue Preservation
Protonenrelaxationsverhalten menschlicher und tierischer Gewebe in vitro, Anderungen bei Autolyse und Fixierung.