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Anatomie en Radiologische Anatomie: LP6 radiologie samenvatting
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LP6 radiologie samenvatting
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LP6: Hoofd: RadiologieSchedel en inhoud:
CT:
- Weke delen venster
o Witte stof (hypodens) – grijze stof (hyperdens)(lichter)
- Bot venster
o Bot hyperdens
o Kalk hyperdens (plexus choroideus en glandula
epifysialis kunnen verkalken!!!)
(bij CT veel minder verschil tussen witte en grijze stof!)
MR:
- T1
- T2
- FLAIR
- T2*: goed voor kalk en bloed
- DWI: goed voor infarcten + abcessen + celrijke tumoren
, - Sutura
o zie je goed op CT: als lijnen in het bot
(nog beter op 3D-reconstructie na CT)
- Meningen op MR T1 met contrast
o normaal zie je meningen dan niet!!
o Aankleuring? = pathologisch
▪ Pachymeningen = aankleuring dura mater
▪ Leptomeningen = aankleuring arachnoid + pia mater
- Hersenparenchym: Grijze stof (cortex) – Witte stof (medulla)
SULCI
- Sulcus lateralis = Sylvische fissuur
o 1 stam
o 3 takken:
▪ Ramus posterior
▪ Ramus anterior
▪ Ramus ascendens
o Trucje McDonalds M (sagittaal)
M is dan de gyrus frontalis inferior (ligt boven sulcus lateralis)
Sagittaal axiaal coronaal
- Sulcus centralis
o scheidt frontale van parietale kwab
o ervoor: precentrale gyrus
= primaire motorische cortex
o erachter: postcentrale gyrus
= somatosensorische cortex
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