GE Revolution CT User Manual page 660

Revolution CT User Manual
Direction 5480385-1EN, Revision 1
(Please confirm Dw value for 20x32cm poly phantom – do not expect it to be same value as for
35cm poly phantom (compare Illustration 9 and Illustration 10).)
Illustration 11: Thorax Phantom shown with overlay indicating: Left - Water Equivalent Diameter
= 22.1cm (OR=1) and Right - Ellipse based on Dw and OR (OR=1.08)
660 7 Scout Based Attenuation Characterization