METHOD FOR MEASURING BLOOD NMR RELAXATION TIME AND APPARATUS USING THE SAME

摘要

Disclosed are a method and apparatus for accurately measuring nuclear magnetic resonance (NMR) longitudinal axis relaxation time by minimizing the influence of the amount of blood. The method includes applying a first magnetic field MSUBO /SUBto a living body portion into which the blood flows magnetizing the blood in a first direction; applying a second magnetic field MSUBZ /SUBto at least a portion of the living body portion, to which the first magnetic field MSUBO /SUBis applied, magnetizing at least a portion of the blood in a second direction vertical to the first direction;; blocking MSUBZ /SUBdetecting a signal that is induced as magnetization is returned from the second direction to the first direction; detecting the amount of blood to which the second magnetic field MSUBZ /SUBis applied; and calculating the longitudinal axis relaxation time T 1 of the blood based on the induced signal and based on the amount of blood.