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Head CT Search Patterns
Head CT Search Patterns
Head CT: Pneumonic
Head CT: Pneumonic
H: Hemorrhage, Herniation, Hydrocephalus
E: Edema-- Cytotoxic/Vasogenic
A: Asymmetry, Artery
D: Dura, Dural venous sinus
C: Calvaria
T: soft Tissues
Outside In
Outside In
Superficial soft tissues
Bones
Sinuses and Mastoid Air Cells
Orbits
Extra-axial spaces-- subarachnoid, subdural and epidural space
Ventricles: too large, mass effect?
Brain Parenchyma-- Mass effect, blurring of gray white? vasogenic edema
Inside Out
Inside Out
Brain Parenchyma-- Mass effect? Blurring of gray white? Vasogenic edema? Hemorrhage?
Ventricles: too large, mass effect?
Extra-axial spaces-- subarachnoid, subdural and epidural space
Orbits
Superficial soft tissues
Bones
Sinuses and Mastoid Air Cells
To view through a normal head CT click on the picture above to view in Pacsbin
To view through a normal head CT click on the picture above to view in Pacsbin
Find the following:
Find the following:
Lobes: Frontal, Parietal, Occipital, Temporal
Basal Ganglia and Thalamus
Pituitary and Pineal Gland
Brainstem: Midbrain, Pons, Medulla
Middle Cerebral A., Basilar A, Sagittal Sinus
Identify the 3rd Ventricle: Measure the HU in the ventricle
Look at the bone window images and identify the Maxillary sinus: What HU measured in sinus?
To view this scrollable set of images in Pacsbin click on the image above
To view this scrollable set of images in Pacsbin click on the image above
To view this scrollable set of images in Radiopaedia click on the image above
To view this scrollable set of images in Radiopaedia click on the image above
The appearance of normal structures on a head CT will often vary by age. Here are 3 different normal head CT's in patients of different ages. Take a look and see if you can identify changes.
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