Dual-sided reading versus single-sided reading:comparison of image quality and radiation dose between the two computed radiography systems
- VernacularTitle:单双面阅读成像板影像质量与辐射剂量的对比研究
- Author:
Shao-Juan SONG
;
Fang-Lian JIAO
;
Heng-Tao QI
;
Yong-Xia ZHAO
;
- Publication Type:Journal Article
- Keywords:
Radiography;
Diagnostic imaging;
Quality control;
Radiation dosage
- From:
Chinese Journal of Radiology
2001;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess and compare the difference in image quality and exposure dose between single-sided reading image plate(IP)and dual-sided reading IP.Methods A contrast-detail phantom CDRAD 2.0 was exposed by single-sided and dual-sided reading IP with different mAs sets.The entrance surface doses were recorded for all images.Images were then presented to two radiologists on a high resolution monitor of diagnosis workstation.The image quality figure(IQF)was measured for each image. Statistical analysis was performed using Spearman's correlation test and Wilcoxon signed-rank test to compare the difference in image quality and exposure dose between single-sided IP and dual-sided reading IP. Results With different tube current dosage of 5.6,12.0,20.0,25.0,and 40.0 mAs,IQF values of single-sided reading IP were 47.95,37.68,34.31,28.61,and 24.65,respectively,while those of dual- sided reading IP were 38.83,29.81,29.65,25.16,and 21.43,respectively.The IQF difference between them showed statistical significance(P
