| http://www.w3.org/ns/prov#value | - The method as defined in claim 2 wherein the relationship of measured spin-spin relaxation time, T2b, to calculated oxygen saturation of blood, %HbO2, is given by: ##EQU3## where T20 is the spin-spin relaxation time of fully oxygenated blood,??180 is time between successive pulses in said plurality of 180??? refocusing pulses, ??0 is the resonant nuclei frequency, and K is a constant. 4.
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