Stroke Imaging PDF

Stroke. 2013;44:2361-2375 THROMBOTIC EMBOLIC “TIME IS BRAIN” Hypodensity of the parenchyma (grey + white matter Hyperdensity of the occluded vessel (thrombus) Hyperdense middle cerebral artery (MCA sign) MCA dot sign Acute right hemiparesis, dysphasia. Hyperdense MCA sign Loss of Grey-White Matter D...

Stroke. 2013;44:2361-2375 THROMBOTIC EMBOLIC “TIME IS BRAIN” Hypodensity of the parenchyma (grey + white matter Hyperdensity of the occluded vessel (thrombus) Hyperdense middle cerebral artery (MCA sign) MCA dot sign Acute right hemiparesis, dysphasia. Hyperdense MCA sign Loss of Grey-White Matter Differentiation/sulcal effacement Acute Right Visual Field loss. Left PCA infarct Acute right hemiparesis, dysphasia. Parenchymal Haemorrhage (Left Basal Ganglia). ABSOLUTE contraindication for thrombolysis. Right MCA Infarct, mass effect/ Midline shift Right MCA Infarct, mass effect – surgical decompression Left MCA hyperdense sign, no opacification on CTA. CT Venogram Intracranial haemorrhage (haemorrhagic stroke due to superior sagittal sinus thrombosis) Transverse sinus thrombosis Areas of cytotoxic edema (restricted motion of water molecules) appear bright on diffusion weighted images –As early as 30 minutes after onset of ischemia DWI Acute infarct left MCA territory ADC DWI Acute infarct left MCA territory ADC Left proximal MCA thrombus Basilar artery throbus http://spinwarp.ucsd.edu/neuroweb/Text/non-trauma-ER.htm Intracranial haemorrhage centered in Right Putamen. JPG Intracranial haemorrhage with mas effect – midline shift. Intracranial haemorrhage – infratentorial (left cerebellar hemisphere) Intracranial haemorrhage – infratentorial – mass effect Posterior Fossa Decompression necessary Subarachnoid haemorrhage Subarachnoid haemorrhage – Anterior communicating artery aneurysm CTA – right MCA aneurysm. Treatment methods for intracranial aneurysms – interventional neuroradiology Subarachnoid haemorrhage – basilar tip aneurysm - coiling