METHOD AND APPARATUS FOR MODULATING FILTERING OF RADIATION DURING RADIOGRAPHIC IMAGING

摘要

PROBLEM TO BE SOLVED: To dynamically filter radiation projected toward a subject for image pickup data acquisition through the use of one filer in order to reduce a useless radiation dose in an X-ray imaging system.

SOLUTION: An apparatus for modulating filtering is equivalently used for a CT imaging system or an X-ray imaging system. The apparatus is translated along a first axis or a transverse axis with respect to an attenuation patterns of the subject during an imaging session to reduce radiation exposure to anatomical regions of the subject sensitive to radiation exposure and/or regions from which data is not acquired.

COPYRIGHT: (C)2004,JPO