公开(公告)号：EP3360482A1

公开(公告)日：2018-08-15

申请号：EP17155385.2

申请日：2017-02-09

申请人： Koninklijke Philips N.V.

发明人： RUIJTERS, Daniël Simon Anna ,  VAN NIJNATTEN, Fred Simon Berend ,  OLIVAN BESCOS, Javier ,  HERMANS, Ronaldus Petrus Johannes ,  BASELMANS, Adrie ,  KLEIN-TEESELINK, Ina ,  SCHEEPENS, Jeroen Gerard ,  CARELS, Walter ,  GRUNHAGEN, Thijs

IPC分类号： A61B6/00 ,  A61B6/03 ,  A61B6/04 ,  A61B6/08

CPC分类号： A61B6/4441 ,  A61B6/032 ,  A61B6/0457 ,  A61B6/08 ,  A61B6/488 ,  A61B6/5223 ,  A61B6/545 ,  A61B6/589

摘要： The present invention relates to iso-centering an object of interest prior to computer tomography (CT) scanning for examination of a patient in a C-arm CT examination apparatus. In order to provide facilitated positioning and to overcome or at least minimize these drawbacks, a C-arm CT examination apparatus (10) for CT scanning for examination of a patient is provided. The apparatus comprises a patient support unit, an acquisition unit, a data processing and control unit, and a display unit. The patient support unit is configured to bed a patient, free of motion, on the patient support. The acquisition unit is configured to acquire scout images of the patient including the object of interest in a respective position of the apparatus having position parameters. The data processing and control unit is configured to store the images and at least one respective position parameter including the iso-center position relative to the image; and to adjust the position of the apparatus roughly into a present position for CT scanning of the object of interest; and to select at least one iso-centering image from the stored images and, by geometrical calculation using, firstly, the at least one stored position parameter of the iso-centering image including the stored iso-center position and using, secondly, at least one position parameter of the present position of the apparatus including the present iso-center, adopting the appearance of the at least one iso-centering image, such that the appearance of the iso-centering image is according to the present position of the C-arm including the present iso-center. The display unit is configured to display the at least one adopted image on a display device together with and relative to a representation of the present iso-center for iso-centering.