This document provides a systematic approach to interpreting a CT scan of the brain. It outlines key areas to examine, including checking for symmetry and midline shift. Important anatomical structures are identified on each slide, such as the ventricles, cisterns, gray and white brain matter. Specific pathologies like hydrocephalus and hemorrhages are also shown. The slides present cross-sectional views of the brain demonstrating the anatomy.

1. Basic Reading Computed
Tomography (CT) of Brain
Basic Reading Computed
Tomography (CT) of Brain
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2. Systemic Approach to Head CT
Interpretation
• Symmetry – Compare left and right side of the cranium
• Midline – Look for midline shift
• Cross-sectional anatomy – Review anatomical landmark for
each slide
– Brain tissue : gray matter, white matter , intracerebral lesions
– CSF space : ventricle, basal cistern, cortical sulci, fissure
– Skull and soft tissue : scalp swelling, fractures, sinuses, orbit
• Subdural windows : Look for blood collection adjacent to the
skull
• Bone windows : Skull, orbit and sinuses, intracranial air

3. Lateral View of Brain

4. Ventricular System

5. Cross-sectional Anatomy
• Grey/White interface, Subcortical white matter

6. Cross-sectional Anatomy
• Paired of crescent-shape = Twin bananas

7. Cross-sectional Anatomy

8. Basal ganglia

9. Cross-sectional Anatomy
• Third ventricle, Basal ganglia, Superior cerebellar cistern

10. Hydrocephalous

11. Physiologic Calcification

12. Brain Anatomy

13. Cross-sectional Anatomy
• Third ventricle, Smiley face

14. Cross-sectional Anatomy
• Midbrain, Interpeduncular cistern

15. Cross-sectional Anatomy
• Star shape ~ Circle of Willis,
• Fourth ventricle, Temporal horn ~ slit

16. Subarachnoid hemorrhage

17. Cross-sectional Anatomy
• Base of skull, Midline bony prominence,
• Prepontine cistern, Pretrous bone, Frontal sinus

18. Cross-sectional Anatomy
• Orbits, Ethmoid air cell

20. The End…