System and method for detecting and tracking a guidewire in a fluoroscopic image sequence

US7792342B2 · kind B2 · utility

Assignees

• Siemens Medical Solutions USA, Inc. · US
• Siemens Aktiengesellschaft · DE

Inventors

• Adrian Barbu · Tallahassee, US
• Vassilis Athitsos · Arlington, US
• Bogdan Georgescu · Plainsboro, US
• Peter Durlak · Erlangen, DE
• Stefan Boehm · Oberasbach, DE
• Dorin Comaniciu · Princeton Junction, US

Key dates

• Filing date: Feb 16, 2007
• Grant date: Sep 7, 2010
• Expiry date: May 26, 2029

Classification

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

Abstract

A system and method for populating a database with a set of image sequences of an object is disclosed. The database is used to detect localization of a guidewire in the object. A set of images of anatomical structures is received in which each image is annotated to show a guidewire, catheter, wire tip and stent. For each given image a Probabilistic Boosting Tree (PBT) is used to detect short line segments of constant length in the image. Two segment curves are constructed from the short line segments. A discriminative joint shape and appearance model is used to classify each two segment curve. A shape of an n-segment curve is constructed by concatenating all the two segment curves. A guidewire curve model is identified that includes a start point, end point and the n-segment curve. The guidewire curve model is stored in the database.