⭕Conventional #MRI in #Movement_Disorder -#MD
🔼 Parkinson’s disease: Clinical diagnosis
✅Clinical Indications for Structural Imaging in Parkinsonism:
◆ Acute or subacute onset or rapid progression
◆ Focal weakness or numbness
◆ Upper motor neuron signs including spasticity and hyperreflexia, especially if unilateral
◆ Bulbar or pseudobulbar symptoms, especially early-onset
◆ Rapidly progressive dementia
◆ Combination of parkinsonism and other movement disorders including chorea, dystonia, myoclonus, and ataxia, especially if unilateral
⭕ Progressive Supranuclear palsy (PSP):
👉Hummingbird sign——-Midbrain in the sagittal plane
👉Morning glory sign—— Midbrain in the axial plane
⭕ Multiple system atrophy (MSA):
👉Hot cross Bun sign —— Pons in the axial plane
👉Putaminal rim sign——- Putamen in axial plane
👉Middle cerebral peduncle sign—– Pons in axial plane
⭕ Normal pressure hydrocephalus (NPH)
👉Elevated Evans ratio—— Axial FLAIR sequence
👉Reduced Callosal angle————— Coronal plane
👉Ventriculomegaly with PVH—— Axial FLAIR
👉Tight convexity of subarachnoid space— Axial and Coronal
⭕ Wilsons disease:
👉Face of giant panda sign—- Midbrain in axial FLAIR
👉Face of miniature panda sign— Dorsal pons in axial FLAIR
⭕ Huntington’s disease:
👉Atrophy caudate head and Putamen
⭕ Neurodegeneration of brain iron accumulation (NBIA):
👉Eyes of tiger sign—–Haller Vorden Spatz disease in Axial plane
👉Cavitation and cortical pencil lining sign—-Neuroferritinopathy in SWI
⭕ Idiopathic and secondary Fahr disease:
👉Bilateral, symmetrical, extensive basal ganglia calcification—- CT scan