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Semi-quantitative Assessment Using [18F]FDG Tracer in Patients with Severe Brain Injury
Published on: November 9, 2018
Crossed cerebellar diaschisis on F-18 FDG PET/CT
Kanhaiya Lal Agrawal1, Bhagwant Rai Mittal, Anish Bhattacharya
1Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Abstract:
Diaschisis is the inhibition of function produced by focal disturbances in a portion of the brain at a distance from original site of injury. Many studies using brain SPECT (single-photon emission computed tomography) have demonstrated crossed cerebellar diaschisis (CCD) in patients with cerebral cortical infarct. We report a case of cerebrovascular accident involving the left middle cerebral artery territory. PET/CT performed one month after stroke showed hypometabolism in the left cerebral hemisphere with hypometabolism of the contralateral cerebellum. The finding of diminished glucose metabolism in the contralateral cerebellum represents CCD.
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