Patent · US Expired

Method and apparatus for functional imaging

US5732702A · kind A · utility

8Cited by

12References

4Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventor

Edgar Mueller · Heroldsbach, DE

Key dates

Filing date	Jan 16, 1997
Grant date	Mar 31, 1998
Priority date	—
Expiry date	Jan 16, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/4806
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In a method and apparatus for functional imaging an impulse sequence is used in which an examination subject is charged with a readout gradient with sub-pulses of alternating polarity. By means of at least two-dimensional Fourier transformation, an image data matrix having N rows is generated from the raw data thereby acquired. After a stimulation of the subject, a second image data matrix is acquired. The coincidence of opposed signal changes that occur at two pixels disposed from each other by a distance of N/2 rows in the image matrix is checked. Found coincidences are evaluated as functional activity.

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