Patent ID: 7702064
Filing Date: 2010-04-20
Classification: A61B

Abstract:
1. A method for providing a 3D x-ray image data record of an examination area of a patient by an x-ray imaging system, comprising: monitoring a plurality of different breathing phases of the patient with a measuring unit connected to the x-ray imaging system; automatically activating the x-ray imaging system repeatedly each time a predetermined breathing phase occurs; repeatedly recording a series of image acquisition operations each time the imaging system is activated wherein during each image acquisition operation a plurality of 2D x-ray images of the examination area are acquired from multiple different perspectives by the activated x-ray imaging system; reconstructing a series of 3D image data records from each series of the 2D x-ray images; performing comparisons among pairs of the 3D image data records to determine how position and a dimension of an imaged structure has changed between data records and generating mapping parameters based on the comparisons; and then applying the mapping parameters to map data records onto one another to further reconstruct multiple ones of the 3D x-ray image data records from multiple series of the 2D x-ray images.