Neuroradiology

The head CT step by step, stroke, bleeds, trauma and MRI.

8 pages

Finding

• Bleeds on head CT: epidural, subdural, subarachnoid and intraparenchymalBlood inside the skull is bright on CT
• Hydrocephalus on imagingHydrocephalus is too much fluid inside the brain's cavities, which swell and press on the brain
• Imaging in acute stroke: CT first, then CT angiographyIn a sudden stroke, a fast brain scan shows whether it is a bleed or a blocked artery, and which…
• Mass effect, oedema and herniation on CTThe skull is a closed box: when a bleed, tumour or swelling takes up room, the brain is pushed…
• Spine MRI: cord compression, disc and infectionMRI is the scan that shows the spinal cord and nerves

Reading

• Brain MRI: when it beats CTMRI uses a magnet, not X-rays
• Reading a head CT step by stepA head CT is a fast X-ray scan of the skull and brain

Choosing a study

• Head trauma: who needs a CT (Canadian CT head rule)Most bumps to the head do not need a scan

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← Radiology and diagnostic imaging

Educational content; it does not replace a radiologist's report and is not a clinical instruction. Each study is ordered on the patient's assessment and your institution's protocols.

Representative model, for educational purposes only.