Patent · US Active

Apparatus and method for the processing of perfusion images

US8175358B2 · kind B2 · utility

7Cited by

2References

19Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Jurgen Weese · Aachen, DE
Georg Rose · Goldkronach, DE

Key dates

Filing date	Mar 4, 2005
Grant date	May 8, 2012
Priority date	—
Expiry date	Nov 5, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG06T2211/424
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention relates to an apparatus and a method for the reconstruction of time-dependent cross-sectional images and may be applied for example in perfusion imaging in the vessel system (2) of a patient. According to the method, projections pij are generated from a number M of different directions di and at different times tij. Moreover, the time-dependent intensity function I(x,t) of the reconstructed volume is approximated by a predetermined model function I*(a(x),t), wherein the unknown parameter vector a(x) is estimated for each voxel x. This estimation may be done using the update functions of known reconstruction algorithms like ART for at least N projections pij in each iteration step.

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