Neuroradiology

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Neuroradiology

• 1.MRI (diffusion) early ischemic stroke
• 2.CT for trauma and CVA/stroke to exclude
  hemorrhage
• 3.MRA or DSA for Aneurysm (SAH)

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CT ischemic infarct
MRA ACUTE INFARCT /MCA occlusion
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IMAGING TECHNIQUES

• PLAIN FILMS
• COMPUTED TOMOGRAPHY
• MAGNETIC RESONANCE IMAGING
• DIGITAL ANGIOGRAPHY (or CTA) for aneurysm
• ULTRASOUND
• DOPPLER US
• PET

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CEREBRAL VASCULAR EVENT

• ISCHEMIC

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(No Transcript)
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T 1
DIFFUSION
FLAIR
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CT of ischemic CVA Right posterior fossa
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Cerebral Edema

• CYTOTOXIC EDEMA stroke (CVA), wedge-shaped
  (vascular teriitory) hypodensity at CT, High
  Signal at MRI
• VASOGENIC tumor

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SAHSubarachnoid Hemorrhage

• TRAUMA
• ANEURYSM CT Angiogram or MRA or Digital
  Subtraction Angiogram shows aneurysm
• AVM
• CT for Acute Hemorrhage Hyperdense (recent
  blood)

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CT Left subdural hematoma
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EPIDURAL HEMATOMA Trauma, does not cross Sutures.
Hyperdense at CT