公开(公告)号：US20200305976A1

公开(公告)日：2020-10-01

申请号：US16306991

申请日：2018-03-01

Applicant: Brainlab AG

Inventor： Steffen BECK ,  Mario SCHUBERT ,  Christian BRACK ,  Luise POITZSCH

IPC: A61B34/10 ,  G06T3/60 ,  G06T7/00 ,  G06T11/00

Abstract: The invention relates to a method of determining the sagittal rotation of a patient's pelvis based on a standard anterior posterior X-ray-image with known image parameters and a calibration of the image, for example by using at least one King-Mark calibration object. The angle of the pelvic rotation is determined between a pelvic plane which is orthogonal to the midsagittal plane of the pelvis, and the image plane of the X-ray-image. Assuming the patient's position shown on the X-ray-image represents a standard neutral position, the X-ray-image plane can be used as a functional reference plane for further calculations, for example during hip-replacement surgery. The present invention further relates to a corresponding computer program and system.