Title :
Eye lens doses in the head pediatric CT examinations
Author :
Medeiros, Regina B. ; Daros, Kellen Adriana C ; Gimenez, Ricardo A. ; Lederman, Henrique M.
Author_Institution :
Dept. of Diagnostic Imaging, Univ. Federal de Sao Paulo, Brazil
Abstract :
We investigated the dose in the eyes of 25 pediatric patients, from 0 to 3 years, submitted to CT head exam, using TLD dosimeters inside a tube set perpendicularly to the orbito-meatal baseline. The results shown that the absorbed eye doses varied from 63.0 to 94.6 mGy with an average uncertainty of 28%. These results confirm the findings of similar studies considering the differences of protocols and scanner design
Keywords :
computerised tomography; diagnostic radiography; dosimetry; eye; paediatrics; 0 to 3 year; 63 to 94.6 mGy; CT head exam; TLD dosimeters; X-ray dose; absorbed dose distribution; absorbed eye doses; eye lens doses; lucite phantom; orbito-meatal baseline; pediatric patients; Computed tomography; Eyes; Head; Image quality; Lenses; Pathology; Pediatrics; Protocols; Uncertainty; X-ray imaging;
Conference_Titel :
Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-6465-1
DOI :
10.1109/IEMBS.2000.897961
