Patent · US Active

System and method for coronary digital subtraction angiography

US9524550B2 · kind B2 · utility

0Cited by

6References

26Claims

0Family size

Assignee

Siemens Healthcare Limited · DE

Inventors

Ying Zhu · Monmouth Junction, US
Simone Prummer · Fairview Avenue, DE
Peng Wang · New Taipei, TW
Terrence Chen · Princeton, US
Martin Ostermeier · Buckenhof, DE
Dorin Comaniciu · Princeton Junction, US

Key dates

Filing date	May 5, 2010
Grant date	Dec 20, 2016
Priority date	—
Expiry date	Mar 30, 2035

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, a motion estimate is calculated between each of the mask images and a background region of the contrast image and a covariance is calculated for each motion estimate. Multiple background layer predictions are generated by generating a background layer prediction for each mask image based on the calculated motion estimate and covariance. The multiple background layer estimates are combined using statistical fusion to generate a final estimated background layer. The final 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.