28 results
Stroke Blood Vessel Localization and corresponding territories on MRI

by Jeremy Heit, MD, PhD @JeremyHeitMDPHD

#Stroke #CVA #Localization
territories on MRI ... JeremyHeitMDPHD #Stroke #CVA ... #Territories #MRI ... #Radiology #Arteries ... #Neurology #Artery
Pronator Drift Testing for Stroke
Subtle extensor weakness - Sign of Upper motor neuron lesion
In detecting CT/MRI
extensor weakness - Sign ... In detecting CT ... /MRI abnormality ... physicalexam #diagnosis #neurology ... #cva
How do you work up an ischemic CVA?
A) Initial Evaluation
 • ABCs
 • IV access, monitor
• Non-contrast CT ... a NCCT or • MRI ... Detected on NCCT vs MRI ... Defined if 1) CT ... diagnosis #checklist #neurology
CT vs T1 MRI
CT Head:
 - Bones are white
 - Fat is Dark & Scalp fat
CT vs T1 MRI CT ... not apparent T1 MRI ... Pal @drdevrad #CT ... #T1 #MRI #comparison ... #neurology #radiology
Effects of Strokes by Location - Anterior vs Posterior Localization

Anterior Circulation 
 - MCA 
 -
Circulation - MCA ... Strokes #Syndromes #CVA ... Territory #Symptoms #Signs ... Localization #Effects #Neurology ... Review in Clinical Neurology
Evolution of stroke on CT and MRI. 

Day 1: NCHCT demonstrates obscure left insular cortex. No
Evolution of stroke on CT ... abnormalities in the left MCA ... #Stroke #CVA #MRI ... Progression #Timeline #Neurology ... #Radiology #Findings
Progression of Imaging Findings in Acute Stroke - Timeline
Onset → Hours → Days → Weeks →
• Non-Enhanced CT ... CBarreraMD #CVA ... #Progression #radiology ... #neurology
Restarting Anticoagulation after TIA or Acute Ischemic Stroke

 • TIA → Consider (re-) starting a NOAC
transformation by brain CT ... or MRI within 24 ... or MRI within 24 ... #TIA #Stroke #CVA ... #neurology #management
Clinical Features and Vascular Territories of Stroke
Anterior circulation—anterior cerebral artery (ACA) - Contralateral leg weakness
Anterior circulation—middle
aphasia (left MCA ... apraxia (right MCA ... without cortical signs ... Territories #Stroke #CVA ... #Diagnosis #Neurology
Evolution of MRI Findings in Stroke

MR images at five subsequent time points in a 67-year-old woman
Evolution of MRI ... #Evolution #MRI ... Progression #Stroke #CVA ... #Clinical #Radiology ... Interpretation #Findings #Neurology