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Neuroradiology Insights: Skull X-Ray and Brain CT Anatomy Interpretation

Delve into the essential concepts of neuroradiology through the exploration of skull imaging and brain CT scans. This lecture focuses on identifying structures like the internal capsule, caudate head, and thalamus, while discussing CT characteristics of different tissues. Learn about MRI contraindications, applications of diffusion imaging in clinical assessments, and differential diagnoses concerning intracranial lesions. Enhance your understanding of interpretation nuances in radiology, from CT findings of hematomas to MRI insights on infarctions and tumors.

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Neuroradiology Insights: Skull X-Ray and Brain CT Anatomy Interpretation

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Presentation Transcript

  1. Neuroradiologyinteractive lecture 366 RAD (Radiology) Prof. Ibrahim A. Alorainy

  2. Name the structures Skull X-RAY LAT. VIEW SKULL PA VIEW L

  3. Which is true on this brain CT regarding anatomy: • Internal capsule • Caudate head • Cerebral peduncle • Putamen • Thalamus • 4th ventricle

  4. Which is true in CT? • Bone is black • CSF is black • Gray matter is darker than white matter • Gray and white matter can not be differentiated

  5. Name the structures

  6. Contraindication of MRI include all the following EXCEPT: • cardiac pacemaker • cochlear implants • metal close to the eye • neurostimulators • pregnancy (3rd trimester)

  7. MRI diffusion (DWI) is particularly helpful in assessment of: • Brain infarction • Brain abscess • Brain tumors • Hydrocephalus

  8. MRI Diffusion.. MR diffusion Very helpful in assessment of: • Early brain infarction. • Brain abscess. • Certain types of brain tumor. ADC map DWI

  9. Which of the following is true? • This is CTA study • This is MRA study • This can only be done with contrast • This is good to diagnose cerebral venous thrombosis

  10. An MRI showed intra-axial lesion that is necrotic, irregular, strongly enhancing, and crossing midline. This lesion is most likely: • Meningioma • Infarction • Multiple sclerosis • Glioblastomamultiforme

  11. The lesion on this CT is: • Meningioma • Abscess • Multiple sclerosis • Glioblastomamultiforme

  12. The lesion on this MRI is: • Meningioma • Infarction • Metastasis • Abscess

  13. Which of the following is true about the lines of the cervical spine? • Red is intervertebral line • Brown is posterior spinous line • Green is spinolaminar line • Blue is posterior vertebral line

  14. This MRI of the spine shows: • Meningocele • Extradural tumor • Discitis • Vertebral fusion

  15. Patient C Patient B Patient A

  16. What is the difference? Patient Normal control

  17. T2WI FLAIR DWI • This MRI shows an infarction in the right basal ganglia. • The infarction is: • Acute (recent) • Chronic (old) • Hemorrhagic • In PCA territory

  18. T2WI FLAIR DWI • This patient is most likely to have: • Left monoplegia • Left hemiplegia • Diplegia • No symptoms

  19. This CT shows: Subdural hematoma Subarachnoid hemorrhage Intraventricular hemorrhage All of the above

  20. The hematoma pointed by the arrow is: Acute epidural Chronic epidural Acute subdural Chronic subdural None of the above

  21. This CT shows: Acute PCA infarct Chronic ACA infarct Subarachnoid bleeding Meningioma Abscess

  22. Thank you

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