Naslov
Scatter Radiation Breast Exposure During Head CT: Impact Of Scanning Conditions And Anthropometric Parameters On Shielded And Unshielded Breast Dose

Autori
Klasić, Branimir ; Knežević, Željka ; Brnić, Zoran ; Vekić, Branko ; Novačić, Karlo

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Radiation Protection: from Knowledge to Action / Société Française de Radioprotection - Pariz, 2006, 1-11

Skup
Second European IRPA Congress

Mjesto i datum
Pariz, Francuska, 15.05.2006. - 19.05.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
CT of head ; thermoluminescent dosemetar ; breast dose

Sažetak
Constantly increasing clinical requests for CT scanning of the head on our facility continue to raise concern regarding radiation exposure of patients, especially radiosensitive tissues positioned close to the scanning plane. The aim of our prospective study was to estimate scatter radiation doses to the breast from routine head CT scans, both with and without use of lead shielding, and to establish influence of various technical and anthropometric factors on doses using statistical data analysis. In 85 patient referred to head CT for objective medical reasons, one breast was covered with lead apron during CT scanning. Radiation doses were measured at skin of both breasts and over the apron simultaneously, by the use of thermoluminescent dosimeters. The doses showed a mean reduction by 37% due to lead shielding. After we statistically analyzed our data, we observed significant correlation between under-the-shield dose and values of technical parameters. We used multiple linear regression model to describe the relationships of doses to unshielded and shielded breast respectively, with anthropometric and technical factors. Our study proved lead shielding of the breast to be effective, easy to use and leading to a significant reduction in scatter dose.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

POVEZANOST RADA