Real-time collimation and ROI-filter positioning in X-ray imaging via automatic detection of the landmarks of interest

US10268915B2 · kind B2 · utility

Assignee

• Siemens Healthcare Limited · DE

Inventors

• Wen Wu · Plainsboro, US
• Terrence Chen · Princeton, US
• Anton Nekovar · Neunkirchen, DE
• Martin Ostermeier · Buckenhof, DE
• Dorin Comaniciu · Princeton Junction, US

Key dates

• Filing date: Jun 9, 2015
• Grant date: Apr 23, 2019
• Expiry date: Jun 11, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G06V2201/034
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method for real-time collimation and ROI-filter positioning in X-ray imaging in interventional procedures includes acquiring an image of a region-of-interest (ROI) at a beginning of a medical intervention procedure on a subject, classifying the image based on low-level features in the image to determine a type of procedure being performed, determining a list of landmarks in the image from the type of procedure being performed, and loading a pre-trained landmark model for each landmark in the list of landmarks, where landmarks include anatomical structures of the subject and medical devices being used in the medical intervention procedure, and computing collimator settings of an X-ray imaging device from ROI filter margins and bounding boxes of the landmarks calculated using the landmark models.