Površinske doze pacijenata pri različitim CT pretragama (CROSBI ID 463330)
Prilog sa skupa u zborniku | izvorni znanstveni rad
Podaci o odgovornosti
Vekić, Branko ; Kovačević, Sandra ; Ranogajec- Komor, Maria ; Duvnjak, Neda ; Marušić, P. ; Anić, P. ; Dolenčić, P.
hrvatski
Površinske doze pacijenata pri različitim CT pretragama
Computed tomography (CT) has become a major source of the population exposure to diagnostic X-rays, and acknowledge of the doses delivered by the CT equipment has become very important. COnsiderable efforts should be made to keep these doses to a reasonable minimum, without sacrificing the image quality. The conditions of exposure in CT are quite different from dose in conventional X-ray imaging. This has required the development of specific techniques for assessing patient dose from CT. The aims of this work were to determine the dose delivered to various organs of patients undergoing computed tomography of abdomen, thorax, pelvis and kideny as measured on the surface of the body and to estimate the risk to the patients. Dosimetric measurements were performed at two different CT scanners (Siemens SOMATOM DR-H ve.r HC-1 and Shimadzu SCT-4500TE). The doses absorbed by different organs (gonads, chest, thyroid and eye lens) and by the examined part of the body of 95 patients of various sex and age were measured with TLD-700. The doses absorbed by different organs during the diagnostic CT examination of the body depend on the technical parameters, such as the number of scans, mAs, the thickness of scans, scanning times, tube voltage and other characteristics, some of each depend on the type and severity of illness. Clinical parameters, such as patient size and composition, and patient cooperation with regard to the control and motion, also influence the dose and the image quality. The highest dose measured in this study (89.19 mGy) was delivered to kidney during CT examination of this organ.
površinske doze; pacijent; CT pretrage
nije evidentirano
engleski
Patient surface doses in computerized tomography examinations
nije evidentirano
surface doses; patient; computerized tomography examinations
nije evidentirano
Podaci o prilogu
237-243-x.
1996.
objavljeno
Podaci o matičnoj publikaciji
Kubelka, Dragan ; Kovač, Jadranka
Zagreb: Hrvatsko društvo za zaštitu od zračenja
Podaci o skupu
Treći simpozij Hrvatskog društva za zaštitu od zračenja
predavanje
20.11.1996-22.11.1996
Zagreb, Hrvatska