Granted Patent B2

US 12,493,090 · App. 18/520,434 · Granted Dec 9, 2025

Inventors: Wei Liu (Erlangen, DE); Daniel Nicolas Splitthoff (Uttenreuth, DE); Florian Maier (Buckenhof, DE); Thomas Vahle (Nuremberg, DE); Heiko Meyer (Uttenreuth, DE)

Assignee: Siemens Healthineers AG

G01R33/543G01R33/5608G06T11/005G06T11/008G06T2211/464

Abstract

Claims (36)

1 . A controller, comprising:

a data interface configured to receive a provisioning request for providing a magnetic resonance tomography (MRT) image of a geometric image region of an object,

wherein the provisioning request comprises a specification relating to a feature that is to be matched between an MRT reference image of the geometric image region of the object and the MRT image; and

processing circuitry configured to:

actuate and control, in accordance with a predefined measurement method, an MRT apparatus based upon the specification to perform a predefined MRT measurement on the geometric image region of the object;

receive an MRT dataset generated via the predefined MRT measurement; and

generate, based upon the MRT dataset and via a predefined exporting method, the MRT image of the geometric image region of the object according to the specification by selectively transforming the MRT image as a function of the MRT reference image to register the MRT reference image and the MRT image with one another.

2 . A method for operating a controller of a magnetic resonance tomography (MRT) apparatus, the method comprising:

receiving a provisioning request for providing an MRT image of a geometric image region of an object,

wherein the provisioning request comprises a specification relating to a feature that is to be matched between an MRT reference image of the geometric image region of the object and the MRT image;

actuating and controlling the MRT apparatus in accordance with a measurement method based upon the specification to perform a predefined MRT measurement on the geometric image region of the object;

receiving an MRT dataset that is generated in the predefined MRT measurement; and

generating the MRT image of the geometric image region of the object based upon the MRT dataset and according to the specification via a predefined exporting method by selectively transforming the MRT image as a function of the MRT reference image to register the MRT reference image and the MRT image with one another.

3 . A non-transitory electronically readable data medium configured to store electronically readable control information that, when executed by a controller of a magnetic resonance tomography (MRT) apparatus, cause the MRT to:

receive a provisioning request for providing an MRT image of a geometric image region of an object,

wherein the provisioning request comprises a specification relating to a feature that is to be matched between an MRT reference image of the geometric image region of the object and the MRT image;

actuate and control the MRT apparatus in accordance with a measurement method based upon the specification to perform a predefined MRT measurement on the geometric image region of the object;

receive an MRT dataset that is generated in the predefined MRT measurement; and

generate the MRT image of the geometric image region of the object based upon the MRT dataset and according to the specification via a predefined exporting method by selectively transforming the MRT image as a function of the MRT reference image to register the MRT reference image and the MRT image with one another.

4 . The controller as claimed in claim 1 , wherein the feature that is to be matched comprises an alignment of the MRT image with an alignment of the MRT image with respect to a predefined reference system.

5 . The controller as claimed in claim 1 , wherein the feature that is to be matched comprises a spatial resolution of the MRT image with a spatial resolution of the MRT reference image.

6 . The controller as claimed in claim 1 , wherein the feature that is to be matched comprises a covering of the MRT image with a covering of the MRT reference image.

7 . The controller as claimed in claim 1 , wherein the feature that is to be matched comprises a position of a predefined reference in the MRT image with the position of a predefined reference in the MRT reference image.

8 . The controller as claimed in claim 1 , wherein the processing circuitry is configured to determine a predefined quality feature of the MRT image in accordance with a predetermined quality determination method.

9 . The controller as claimed in claim 1 , wherein the controller is part of the MRT apparatus.

10 . The controller as claimed in claim 1 , wherein a spatial resolution of the generated MRT image is greater, by an integral multiple, than a spatial resolution according to the specification.

11 . The controller as claimed in claim 1 , wherein the processing circuitry is configured to generate the MRT image of the geometric image region of the object by reducing, via the predefined exporting method, a spatial resolution of the MRT image to match a spatial resolution of the MRT reference image.

12 . The controller as claimed in claim 1 , wherein the processing circuitry is configured to selectively transform the MRT image as a function of the MRT reference image to register the MRT reference image and the MRT image with one another via an alignment of a voxel grid between the MRT image and the MRT reference image.

13 . The controller as claimed in claim 1 , wherein the processing circuitry is configured to selectively transform the MRT image as a function of the MRT reference image to register the MRT reference image and the MRT image with one another by interpolating the MRT dataset such that the MRT image has a voxel grid that is aligned with that a voxel grid of the MRT reference image.

14 . The controller as claimed in claim 1 , wherein:

the MRT reference image comprises a two-dimensional image,

the MRT image comprises a three-dimensional image, and

the feature that is to be matched comprises a plane in the MRT image that is to be matched to the MRT reference image.

15 . The controller as claimed in claim 8 , wherein the processing circuitry is configured to transform the MRT image in accordance with a predefined the registration method only when a predefined quality criterion is met by the predefined quality feature of the MRT image.

16 . The controller as claimed in claim 8 , wherein the processing circuitry is configured to determine, via a predefined correction method as a function of the predefined quality feature, a correction specification for adjusting the quality feature such that the quality feature meets a predefined quality criterion.

17 . The controller as claimed in claim 15 , wherein the predefined quality criterion comprises a signal-to-noise ratio, an image contrast, or a dynamic range.

Assignments (4)

Priority Claims (1)

Continuity (1)

References Cited (15)