Investigation of patient doses and exposure index undergoing digital radiography
WANG Shu-min
LAN Di
ZHANG Meng-long
WANG Jing
Abstract：Objective To investigate the patient radiation dose and exposure index in digital radiography .Methods The analysis consisted of measurement of the dose‐area product (DAP) and entrance surface dose (ESD) received by a reference group of patients for 8 common radiographic procedures using DR system .Meanwhile ,exposure index (EI) data were col‐lected and compared with previous study .Results The average patient ESD for each radiographic procedure was 0 .29 mGy (chest PA) ,0 .27 mGy (chest LAT) ,1 .41 mGy (skull PA) ,0 .95 mGy (skull LAT) ,2 .12 mGy (lumbar spine AP) ,4 .60 mGy (lumbar spine LAT ) ,1 .42 mGy (abdomen AP) ,and 1 .36 mGy (pelvis AP) ,respectively .The average patient EI for each radiographic procedure was 1803 (chest PA ) ,1562 (chest LAT ) ,1719 (skull PA ) ,1762 (skull LAT) ,1871 (lumbar spine AP) ,1654 (lumbar spine LAT) ,1982 (abdomen AP) ,and 1788 (pelvis AP) ,respectively . The average EI was 1768 for images ,which qualified the EC standard .Conclusion The patient doses and EI are higher than necessary .Optimization procedure should be performed to adjust radiographic parameters .
Keywords：Digital radiographyRadiation doseExposure indexOptimization
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 1924-1926 )