Method and system for registering multiple structures in medical images

US11669984B2 · kind B2 · utility

Assignees

• THE JOHNS HOPKINS UNIVERSITY · US
• Siemens Healthcare Limited · DE

Inventors

• Jeffrey H. Siewerdsen · Baltimore, US
• Runze Han · Beijing, CN
• Gerhard Kleinszig · Forchheim, DE
• Sebastian Vogt · Jena, DE

Key dates

• Filing date: Feb 12, 2021
• Grant date: Jun 6, 2023
• Expiry date: Jul 31, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2219/2004
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method, computer system, and a computer-readable medium for registering one or more structures to a desired orientation for planning and guidance for surgery is provided. The method includes in a preoperative stage, obtaining one or more 3D models of one or more structures from one or more CT images using an image processing segmentation technique or a manual segmentation technique; in the preoperative stage, registering the one or more structures to a template that is adapted to an alternating registration for a patient-specific shape and pose for a desired reduction and corresponding reduction transformations; in an intraoperative stage, mapping the one or more structures to one or more radiographs via a 3D-2D registration that iteratively optimizes a similarity metric between acquired and simulated radiographs; and in the intraoperative stage, providing an output that is representative of a radiograph or a 3D tomographic representation to provide guidance to a user.