methemoglobin

At highest field strengths, the core of the clot may have low signal on T2-weighted images, due to the presence of intracellular methemoglobin or of deoxyhemoglobin.

场强时，血块中心在T2加权像上是低信号影，这是由于铁血红蛋白或还原型血红蛋白存在产生。