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RT uređaji (Vrste RT (IORT (definicija (zračenje 1 fraskcijom (na…
RT uređaji
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prof
Teleradioth
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LINAC dijelovi
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5 glavnih dijelova
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- stativ akceleratora-Gentry
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Kobalt
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konaltna jedinica
mane
opasno za osoblje
jer
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olove ne pruža zašzitu
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uređaj
2 čelične glave
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unutar njih
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ili slitina
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bolja zaštita
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pohvale
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jednostavna dozimetrija
zračenje
iste energije
1.25 MV=3-4MV x zraka
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brahiradioth
vrste aplikacije
3 vrste
površinska
tretman malih područja
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naprave se
plastični odljevi
stave na kožu
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afterloding
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kiritron
Cs137, 0.662 MeV, T1/2 5.3y
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radioaktivni elemnti
Technetium-99m (6 h): Used in to image the skeleton and heart muscle in particular, but also for brain, thyroid, lungs (perfusion and ventilation), liver, spleen, kidney (structure and filtration rate), gall bladder, bone marrow, salivary and lacrimal glands, heart blood pool, infection and numerous specialised medical studies. 
Cobalt-60 (5.3 y): Formerly used for external beam radiotherapy. 
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Iridium-192 (74 d): afterloding 
Lutetium-177 (6.7 d): Lu-177 is increasingly important as it emits just enough gamma for imaging while the beta radiation does the therapy on small (eg endocrine) tumours. Its half-life is long enough to allow sophisticated preparation for use. 
Palladium-103 (17 d): Used to make brachytherapy permanent implant seeds for early stage prostate cancer. 
Samarium-153 (47 h): Sm-153 is very effective in relieving the pain of secondary cancers lodged in the bone, sold as Quadramet. Also very effective for prostate and breast cancer. Beta emitter. 
Strontium-89 (50 d): Very effective in reducing the pain of prostate and bone cancer. Beta emitter. 
Yttrium-90 (64 h): Used for cancer brachytherapy and as silicate colloid for the relieving the pain of arthritis in larger synovial joints. Pure beta emitter. 
radij, t1/2-1600y, koriste se y čestice (koje se izoliraju)
Cs137, 0.662 MeV, T1/2 -30y
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Pomoćni uređaji
CT simulator
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4 lasera
za određivanje dimenzija
AP, LL ili projekcija izocentra
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