1. Neuroradiology Approach to Head CT

2. Rapid Assessment of CT head or Do I need to call a Neurosurgeon NOW!!! 1.Is the brain in the middle of the head? 2.Do the 2 sides of the brain look alike? 3.Can I see the smile and the pentagon? 4.Is the 4 th ventricle in the midline and symmetrical? 5.Are the lateral ventricles huge with effaced sulci? + the Anderson additional questions 6.Are there any abnormal white things inside the skull? 7.Are there any abnormal black things inside the skull? 1 – 5 From Brant & Helms “Fundamentals of Diagnostic Radiology” 2 nd ed.

3. Is the brain in the middle of the head? YESNO

4. Do the 2 sides of the brain look alike? YESNO

5. The Smile Quadrigeminal Plate Cistern

6. The Pentagon (or star) Suprasellar Cistern

7. No Smile, No Pentagon No Good!!

8. 4 th Ventricle

10. Are the lateral ventricles huge with effaced sulci?

11. Ventriculomegaly 2 different 30ish year old patients