Divyata Hingwala1, Deepak Gupta2, Jitender Saini3, Kesavadas Chandrasekharan1, Bejoy Thomas1, Asha Kishore4
1Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India; 2Stroke and Cerebrovascular Diseases, University of Alberta; 3Radiology, National Institute of Mental Health and Neurological Sciences, India; 4Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
In this presentation, we aim to describe the role of Susceptibility Weighted Imaging in the imaging of patients with movement disorders and differentiating between the various disorders. The anatomy of the midbrain and basal ganglia in normal subjects on SWI is covered. A number of neurodegenerative disorders are associated with abnormal iron deposition. Greater hypointensity of red nucleus in PSP differentiates PSP from both PD and MSA-P and the higher putaminal hypointensity score discriminates PSP from PD. Patients with coticobasal degeneration may show unilateral increase in deep grey matter iron deposition. Microbleeds seen on SWI may help diagnose vascular parkinsonism.