Patent ID: 9655568
Date: 2017-05-23
CPC Classifications: A61B,H05G

Claim:
1. A method for recording a scan of a region of interest (ROI) using a C-arm X-ray apparatus with a virtual scan center located in the center of the ROI, wherein the scan comprises a series of X-ray projection views providing a complete set of X-ray projection data of the ROI in the plane of the C-arm X-ray apparatus for a 3D reconstruction, and wherein the series of X-ray projection views is recorded using the C-arm X-ray apparatus, the X-ray apparatus comprising a C-arm with a space-fixed plane, the C-arm being mounted in such a manner that it can be moved parallel with a holder which is multiply adjustable by means of a motor, the C-arm further being mounted in such a manner that it can be moved by means of a motor in the holder along its periphery in an orbital movement axis, between a first and a second extreme position, the method comprising: at the start point of the focus trajectory: in a first section of the focus trajectory, moving the holder parallel in the plane of the C-arm until the central ray vector extends through the virtual scan center and the ROI is located completely within the fan beam; in a second section of the focus trajectory: in a third section of the focus trajectory: