the variation with field strength or interecho interval of the t1 and t2 relaxation times of oxyhemoglobin ( hbo2 ) , deoxyhemoglobin ( hb ) , and methemoglobin ( mhb ) in either intact or lysed red blood cells was studied with a variable field ( 0.19-1.4 t ) nuclear magnetic resonance spectroscopy unit .
C0019046
hb
C0025635
methemoglobin