Recently, a novel MRI sequence based on the BOLD contrast is used to assess the extent of deoxygenation in ischemic tissue and to derive the OEF.

• 近年来开始有人利用对侦测去氧血红素含量有敏感性的新脉冲序列-BOLD对比技术，企图来测量大脑的血氧饱和度，甚至是OEF。