<p>Scatter compensation is achieved in an X-ray imaging system by providing collimation means in the form of shutters (12) to collimate the primary X-ray beam (1) such that the radiation (8) transmitted through a subject (4) to be imaged is incident substantially centrally on the active part (14) of an image detector (3), so as to define an active border (14b), in respect of which scatter levels can be measured. An electrical signal (104) representative of the scatter level is subtracted from the electrical signal (7) representative of the radiation (8) transmitted through the subject, to obtain a scatter-compensated image signal (106).</p>
申请公布号
WO2006056915(A1)
申请公布日期
2006.06.01
申请号
WO2005IB53802
申请日期
2005.11.17
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;JOOSTEN, JOHANNES, H., M.;NOORDHOEK, NIELS;STEGEHUIS, HERMAN
发明人
JOOSTEN, JOHANNES, H., M.;NOORDHOEK, NIELS;STEGEHUIS, HERMAN