OxyHb is evident over the dorsal neocortex around the injection point right after injection without distribution in optic chiasma cistern and basilar cistern.

• 于注血后即刻灌注取脑，发现OxyHb集中于注射点脑皮质表面，而脑基底池和视交叉池等蛛网膜下腔未发现OxyHb分布。