Patent · US Active

Method for controlling patient stimulating effects in magnetic resonance imaging, corresponding computer program and computer-readable storage medium, and magnetic resonance imaging device

US11287503B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

Siemens Healthcare Limited · DE

Inventors

Daniel Niederlöhner · Erlangen, DE
Gudrun Ruyters · Erlangen, DE
Axel vom Endt · Newton, US

Key dates

Filing date	Jul 23, 2020
Grant date	Mar 29, 2022
Priority date	—
Expiry date	Aug 6, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/3852
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Methods and systems for controlling patient stimulating effects in MR imaging. The methods and systems include calculating a first effective stimulus duration independently for each pulse flank of an MRI sequence individually and calculating a second effective stimulus duration for which a respective history of a changing gradient field during the sequence is taken into account. Dependent on an evaluation of both the first and second effective stimulus durations a threshold value for an allowable rate of change in the magnetic gradient field is then calculated. The respective MRI sequence is then evaluated against the calculated threshold value to determine whether or not the respective MRI sequence is safe to apply.

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