Compensation interface for a magnetic resonance imaging system

Patent metadata

Field	Value
Publication number	US-12164012-B2
Application number	US-202218077386-A
Country	US
Kind code	B2
Filing date	Dec 8, 2022
Priority date	Dec 9, 2021
Publication date	Dec 10, 2024
Grant date	Dec 10, 2024

Abstract

A magnetic resonance (MR) system compensation interface having: a hardware subinterface configured to receive individual hardware parameters from an individual scan unit of an MR system; a model determination unit configured to determine an imperfection model on the basis of the hardware parameters; a compensation model determination unit configured to determine a compensation model on the basis of the imperfection model; an application subinterface configured to receive application data assigned to an application; and a compensation unit configured to determine compensated application data on the basis of the received application data and the determined compensation model.

First claim

The invention claimed is:

1. A magnetic resonance (MR) system compensation interface for modifying application data, comprising:
a hardware subinterface configured to receive individual hardware parameters from an individual scan unit of an MR system;
a model determination unit configured to determine an imperfection model on the basis of the hardware parameters;
a compensation model determination unit configured to determine a compensation model on the basis of the imperfection model;
an application subinterface configured to receive the application data assigned to an application; and
a compensation unit configured to determine compensated application data on the basis of the received application data and the determined compensation model,
wherein the imperfection model comprises a plurality of trained models, each of which is assigned to a different physical effect.

2. The MR system compensation interface of claim 1 , wherein the compensation model determination unit is configured to maintain values specified by means of the application data for temporal sequences and time intervals of the application unchanged.

3. The MR system compensation interface of claim 2 , wherein the compensation unit is configured to change the temporal sequence and/or duration of an application incorporated in the application data.

4. The MR system compensation interface of claim 1 , wherein the imperfection model comprises a physical model and/or a trained model.

5. The MR system compensation interface of claim 1 , wherein the imperfection model comprises a single trained model.

6. The MR system compensation interface of claim 1 , wherein the compensation model determination unit is configured to determine the compensation model as a function of a specific piece of hardware and/or a specific software license.

7. A magnetic resonance (MR) system control device, comprising:
an application unit;
a scan unit interface; and
an MR system compensation interface as claimed in claim 1 .

8. A magnetic resonance (MR) imaging system comprising an MR system control device as claimed in claim 7 .

9. A magnetic resonance (MR) system compensation interface for modifying application data, comprising:
a hardware subinterface configured to receive individual hardware parameters from an individual scan unit of an MR system;
a model determination unit configured to determine an imperfection model on the basis of the hardware parameters;
a compensation model determination unit configured to determine a compensation model on the basis of the imperfection model;
an application subinterface configured to receive the application data assigned to an application; and
a compensation unit configured to determine compensated application data on the basis of the received application data and the determined compensation model,
wherein:
the compensation model has a plurality of compensation algorithms in relation to a specific imperfection, and
the compensation unit is configured to select one of the plurality of compensation algorithms on the basis of the application data.

10. The MR system compensation interface of claim 9 , wherein:
the application subinterface is configured as a dialog interface in order to inform the application and/or a user which compensation algorithm is available, and/or
the MR system compensation interface is configured to design a dialog between an operator and a universal scan unit interface as a function of the determined compensation model.

11. A method for determining a compensated control sequence for a magnetic resonance (MR) system for generating magnetic resonance image data of an examination subject, the method comprising:
receiving individual hardware parameters from an individual scan unit of the MR system;
determining an imperfection model on the basis of the hardware parameters;
determining a compensation model on the basis of the imperfection model;
receiving application data assigned to an application; and
determining compensated application data on the basis of the received application data and the determined compensation model,
wherein:
the imperfection model comprises a plurality of trained models, each of which is assigned to a different physical effect, or
the compensation model has a plurality of compensation algorithms in relation to a specific imperfection, and the determining compensated application data includes selecting one of the plurality of compensation algorithms on the basis of the application data.

12. A non-transitory computer program product comprising a computer program loadable directly into a memory of a control device of a magnetic resonance imaging system, having program sections for performing the steps of the method of claim 11 when the computer program is executed in the control device of the magnetic resonance imaging system.

Assignees

• Siemens Healthcare Gmbh
• Siemens Healthineers Ag

Inventors

• Hölscher Uvo
• Forman Christoph
• Gall Peter

Classifications

• G01R33/543 Primary

  Control of the operation of the MR system, e.g. setting of acquisition parameters prior to or during MR data acquisition, dynamic shimming, use of one or more scout images for scan plane prescription (G01R33/546 takes precedence) · CPC title

• G01R33/5608

  Data processing and visualization specially adapted for MR, e.g. for feature analysis and pattern recognition on the basis of measured MR data, segmentation of measured MR data, edge contour detection on the basis of measured MR data, for enhancing measured MR data in terms of signal-to-noise ratio by means of noise filtering or apodization, for enhancing measured MR data in terms of resolution by means for deblurring, windowing, zero filling, or generation of gray-scaled images, colour-coded images or images displaying vectors instead of pixels (image data processing or generation, in general G06T) · CPC title

• G01R33/565 Primary

  Correction of image distortions, e.g. due to magnetic field inhomogeneities · CPC title