26 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
Differential diagnosis for toxic/metabolic encephalopathies - Patterns on Brain Imaging

Cynthia Czawlytko, MD @drcyncity

#Differential #diagnosis #encephalopathies #encephalopathy
Differential diagnosis ... MD @drcyncity #Differential ... imaging #patterns #MRI ... #Neurology #pathology ... #diseases #radiology
How do you work up an ischemic CVA?
A) Initial Evaluation
 • ABCs
 • IV access, monitor
a NCCT or • MRI ... Detected on NCCT vs MRI ... Cardioembolic: • ECG ... Defined if 1) CT/MRI-confirmed ... diagnosis #checklist #neurology
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Hyporeflexia: • Hypercalcemia ... polyneuropathy (e.g ... Hyperreflexia: • Hypocalcemia ... Testing #Causes #differential ... diagnosis #table #neurology
Evolution of MRI Findings in Stroke

MR images at five subsequent time points in a 67-year-old woman
Evolution of MRI ... it possible to differentiate ... Progression #Stroke #CVA ... #Clinical #Radiology ... Interpretation #Findings #Neurology
Evolution of stroke on CT and MRI. 

Day 1: NCHCT demonstrates obscure left insular cortex. No
stroke on CT and MRI ... on T2-weighted MRI ... #Stroke #CVA #MRI ... Progression #Timeline #Neurology ... #Radiology #Findings
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
of Polyuria - Differential ... SGLT2 inhibitors (e.g ... Hereditary, Lithium, Hypercalcemia ... #Polyuria #Differential ... Diagnosis #Causes #nephrology
Timeline for Progression of T2WI and DWI Findings in Acute Stroke
 - In the acute phase
#Stroke #CVA #MRI ... Progression #Timeline #Neurology ... #Radiology #Findings
Classification of Diabetes Insipidus

Central or neurogenic diabetes insipidus:
 - Congenital - Structural malformations affecting the hypothalamus
Metabolic causes (e.g ... , hypokalemia, hypercalcemia ... disease, Drugs (e.g ... Classification #Types #Nephrology ... #Diagnosis #Differential
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Compatible syndrome + MRI ... Lesions #Brain #differential ... diagnosis #causes #radiology ... #neurology