Patent ID: 7558372
Filing Date: 2009-07-07
Classification: A61B

Abstract:
1. A method for obtaining a separate x-ray data record of arteries or veins of a vascular system in a part of a body of a vertebrate using a biplanar C-arm system with a first C-arm and a second C-arm, comprising: recording a mask pass x-ray data record of the part of the body during a mask pass of the C-arm system rotating about the part of the body prior to injecting a contrast agent into the vertebrate; recording a first and a second filler pass x-ray data records of the part of the body during a filler pass of the C-arm system rotating about the part of the body respectively recorded by the first and the second C-arms after injecting the contrast agent into the vertebrate, wherein the first and the second C-arms are offset with respective to each other about a differential angle in the rotation direction; combining the first and the second filler pass x-ray data records to generate a first data record only comprising x-ray data records of the arteries and to generate a second data record only comprising x-ray data records of the veins; and subtracting the mask pass x-ray data record from the first or the second data record to obtain the separate data record of the arteries or the veins for medically examining the part of the body, wherein the filler pass comprises a first rotation of the C-arms in a first direction about 90° plus a half fan angle of the C-arms and a second rotation of the C-arms in a second direction opposite to the first direction about 90° plus the half fan angle of the C-arms.