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Samenvatting radiologie: gastro (deel 1 en 2) en endocrinologie- Probleemoplossend medisch redeneren IV - stuur privé voor beter prijsje

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Samenvatting gastro deel 1
Normale anatomie




A = maagmucosa

- Barium contrast blijft enkel aan de mucosa plakken

B = dunne darm

- Valvulae conniventes: lopen volledig door van de ene naar de andere kant

C = dikke darm

- Haustraties: lopen niet volledig door van de ene naar de andere kant

Normale diameters:

- Jejunum < 4,5 cm
- Ileum < 3,5 cm
- Colon < 5 cm




1

,Anatomische landmarks maag:

- 1 – Curvatura minor
- 2 – Curvatura major
- 3 – Antrum
- 4 – Pylorus
- 5 – Bulbus duodeni
- Pars descendens duodeni (D2): pancreaskop ligt ertegen
- Pars transversa duodeni (D3) → hoek van Treitz → jejunum
- Papil van Vater: uitmonding ductus van Wirsung (pancreaticus major) + ductus van
Santorini (niet bij iedereen)




Normale anatomie dunne darm




2

,Normale anatomie dikke darm




NOTE: doorgezakt colon transversum en lus in lienale hoek zijn normale varianten




3

, Beeldvorming
CT abdomen
Ruglig (supine)

- Zelden buiklig, zijlig

Nuchter

- Niet eten, drinken, roken
- Vet stimuleert galblaas

Opacificatie darmlissen

- DD. Bloedvaten – massa’s
- Peroral contrast
o Gastrografine ® (H2O-opl jood)
o 1 soeplepel in glas water (100 ml)
▪ Avond voordien (voor OZ dikke darm)
▪ S’ Ochtends (voor OZ dunne darm)
o Water of Gastrografine ®
▪ 10 min voor onderzoek (maag en duodenum)
- Per anum
o Gastrografie (rectum)

NOOIT barium!!

Met I.V. jood contrast

- Opacificatie bloedvaten
o DD. Klieren, galwegen, …
- Studie perfusie organen
o Arterieel, portaal en veneuze fase
- Cave : allergie > < vagaal



IV jood contrast fasen
Fase Wat is zichtbaar?

Arterieel (~30 sec) Aorta, a. hepatica, a. mesenterica sup.,
niercortex

Portaal (~65 sec) V. portae, leverparenchym (max.
aankleuring)

Veneus (~180 sec) VCI, subhepatische venen, late perfusie,
pyelum, ureters




4

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