Revalidatie en kinesitherapie van het musculosceletale stelsel: onderste lidmaat (D001816)
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REVAKI MSS OL
-
Partim radiologie
1
, Inleiding
Absorptie in weefsels bepaald door:
- Samenstelling:
Veel lucht: RX gaat er makkelijk door => meer zwart
Ijzer, lood, metaal => geen RX stralen erdoor => meer wit
Water => RX meer resoberen => grijs
- Dikte weefsels:
hoe dikker, hoe minder RX stralen op bot terecht komen & hoe minder zwart
bekijk dia 6-10!!
1. principes v radiolgoische interpretatie
minimaal 2 opnames/ incidenties
loodrecht op elkaar
Radiografische technieken
1. overzichtsradiografie
RX-stralen: geproduceert door röntgen buis met kathode & anode
Elektrische gloeidraad verwarmt
Elektroden komen vrij botsen tegen anode & zorgt vr vrijbrnegen v 1% röntgen stralen
Afh v densiteit & samenstelling v weefsel wordt aan andere kant structuur bestraald die
bepaalde zwartheid teweeg brengt
Praktische opstelling: bakje die we in bepaalde richting kù duwen om bestraalde veld te
beperken (potentieel schadelijk)
1.1. Klassieke & digitale radiologie
Klassieke radiografie:
- Belichten film
- Screen-film radiography
- Met versterkingsscherm & zilverhoudende film in casette
- Film wordt ontwikkeld
Digitale radiografie:
- Omzetting röntgenstraal in digitaal signaal
- Computed radiography
3
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