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| Line 1: |
Line 1: |
| 1. Brain density-grey vs white matter
| | # Brain density-grey vs white matter |
| | | # midline shift |
| 2. midline shift
| | # Subarach space-syl fissure - look for sulci |
| | | # vent system - look at temp horns |
| 3. Subarach space-syl fissure - look for sulci
| | # Corner shots - eyes / bones |
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| 4.vent system - look at temp horns
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| 5. Corner shots - eyes / bones
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| trigone
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| Ethmoid/ sphenoid
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| Foramen ovale -cn
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| 5 -maxillary div
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| spinosum- middle meningeal
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| foramen rotundum / pterygoid
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| Clinoid- medial is orbital canal
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| -sup/inf orb fissure lateral
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| Look for central sulcus- parietal/ frontal div
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| Hypoglossal canal off magnum
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| Cn 7 up cn 8 coke down ( cochlear)
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| jugular foramen 9, 10,11
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| pars marginalis/ central sulcus- division parietal/frontal
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| Sylvian fissure atrophy = temporal lobe atrophy( alzh)
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| Supracellar cistern- circle willis - meningioma/ pit tumors/ craniopharnygioma/ aneurysm
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| Comm hydro - arachnoid
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| Pineal gland - usually calcified- below third vent,
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| Sphenoid - vert vs ethmoid -horizontal
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| Occipital - sagital sinus enhancement
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| Lens/ epidural- dont cross suture lines- cornonal
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| Ex vacuo dilatation- large vent from atrophy vs aids encephalopathy
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| Subdural empyema- meningitis-- stroke
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| Mesenchyme makes up tentorium
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| Vasogenic edema- tumors/infectious vs cytotoxic edema- stroke
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| Ring enh lesions- toxo vs lymphoma in immunocomp pt
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| If thickened near outside. - abcess vs Irreg - ca
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| Avm- atrophy/ calcification
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| Post fossa-cerebellum / pons/ medulla
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| | [[Category:Neuro]] |
| [[Category:Rads]] | | [[Category:Rads]] |
