Patent · US Active

System and method for coronary digital subtraction angiography

US8094903B2 · kind B2 · utility

3Cited by

11References

23Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Ying Zhu · Monmouth Junction, US
Wei Zhang · Nanjing, CN
Adrian Barbu · Tallahassee, US
Simone Prummer · Fairview Avenue, DE
Martin Ostermeier · Buckenhof, DE
Dorin Comaniciu · Princeton Junction, US

Key dates

Filing date	Jun 13, 2008
Grant date	Jan 10, 2012
Priority date	—
Expiry date	Nov 10, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30101
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method and system for extracting coronary vessels fluoroscopic image sequences using coronary digital subtraction angiography (DSA) are disclosed. A set of mask images of a coronary region is received, and a sequence of contrast images for the coronary region is received. For each contrast image, vessel regions are detected in the contrast image using learning-based vessel segment detection and a background region of the contrast image is determined based on the detected vessel regions. Background motion is estimated between one of the mask images and the background region of the contrast image, and the mask image is warped based on the estimated background motion to generate an estimated background layer. The estimated background layer is subtracted from the contrast image to extract a coronary vessel layer for the contrast image.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.