Crossed cerebellar diaschisis (CCD) is the phenomenon of a decreased cerebellar perfusion and glucose metabolism in the cerebellar hemisphere contralateral to a supratentorial cerebral lesion. Although mostly seen in cerebral infarct, CCD has been reported in other clinical conditions such as intracerebral hemorrhage. Recently findings suggested that CCD is not just a neuroradiological phenomenon, arterial spin-labeling (ASL) is a novel noninvasive MRI method that uses arterial water as an endogenous tracer for perfusion imaging. The purpose of this study were to evaluate the value of 3D pCASL to detect CCD in different stage of ICH and to identify the relevant imaging or clinical factors of CCD development.
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