Patent · US Active

Practical image reconstruction for magnetic resonance imaging

US7903858B2 · kind B2 · utility

4Cited by

6References

18Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Ti-chiun Chang · Plainsboro, US
Jiayu Song · Reston, US
Tong Fang · Morganville, US
Peter Speier · Erlangen, DE
Edgar Müller · Fribourg, CH

Key dates

Filing date	Oct 29, 2007
Grant date	Mar 8, 2011
Priority date	—
Expiry date	Jan 5, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/5608
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A set of image-space data is reconstructed from a set of k-space data. The set of image-space data is generated by minimizing a cost functional by an iterative non-linear conjugate gradient process. The iterative process may be accelerated by introducing k-space weighting to the cost functional. With proper choice of k-space weighting, a block-Toeplitz matrix is generated which permits use of Fast Fourier Transform techniques. An image is rendered from the set of image-space data.

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