Organ doses and associated cancer risks for CT examinations of thorax (CROSBI ID 623320)
Prilog sa skupa u zborniku | izvorni znanstveni rad
Podaci o odgovornosti
Popić Ramač, Jelena ; Majer, Marija ; Knežević, Željka ; Hršak, Hrvoje ; Miljanić, Saveta
engleski
Organ doses and associated cancer risks for CT examinations of thorax
The use of computed tomography (CT) is increasing rapidly and doses are not negligible especially when medical procedures require more thanone CT scan. The objectives of the present study were to measure doses in/on an anthropomorphic Rando phantom during standard and low dose CT protocols of thorax and to estimate radiation risks for adult patients that undergo multiple CT scans of thorax. Thermoluminescent (TL) and radiophotoluminescent (RPL) dosimeters were used for dose measurements. Radiation risks of cancer incidence, in the form of lifetime attributable risk (LAR), were estimated using BEIR VII model. For five exposures with standard protocol mean organ doses were 94 mGy (breast), 85 mGy (stomach), 85 mGy (thyroid), 78 mGy (lung), 52 mGy (liver) and 16 mGy (colon). For the standard CT protocol associated LARs were found to be up to 0.401 % (401 breast cancers per 105 exposed patients) and 0.116 % (116 lung cancers per 105 exposed patients) for women and men, respectively. The low dose protocol reduces doses (and risks) by the average factor of 5 and therefore the use of the low dose protocol is recommended whenever it is medically justified.
CT; Cancer risks; organ doses; RPL; TLD
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Podaci o prilogu
201-206.
2015.
objavljeno
Podaci o matičnoj publikaciji
bornik radova 10.Simpozija Hrvatskog društva za zaštitu od zračenja
Petrinec, Branko ; Bituh, Tomislav ; Milić, Mirta ; Kopjar, Nevenka
Zagreb: Hrvatsko društvo za zaštitu od zračenja
1849-5060
Podaci o skupu
10. simpozij HRVATSKOG DRUŠTVA ZA ZAŠTITU OD ZRAČENJA
predavanje
15.04.2015-17.04.2015
Šibenik, Hrvatska