Method for an adaptive actuation of a magnetic resonance device

Patent metadata

Field	Value
Publication number	US-11959987-B2
Application number	US-202017025108-A
Country	US
Kind code	B2
Filing date	Sep 18, 2020
Priority date	Sep 20, 2019
Publication date	Apr 16, 2024
Grant date	Apr 16, 2024

Abstract

In a method for an actuation of a magnetic resonance device for capturing image data from an examination region of an examination object, at least one first control sequence is provisioned, the magnetic resonance device is actuated according to the at least one first control sequence to capture first data from the examination object, the first data is analyzed with respect to a property to generate a result, and, based on the result, a selective performance of one of: a selection of a further control sequence, and termination of the actuation of the magnetic resonance device, is performed.

First claim

The invention claimed is:

1. A method for an actuation of a magnetic resonance device for capturing image data from an examination region of an examination object, the method comprising:
provisioning at least one first control sequence that specifies an actuation of the magnetic resonance device for generating image data;
actuating the magnetic resonance device, according to the at least one first control sequence, to capture first image data from the examination object during an examination, the first image data being generated by the actuation of the magnetic resonance device;
analyzing the first image data with respect to a property to generate a result indicative of an illness, the analysis of the first image data including a comparison of a value characterizing the property with a threshold value, wherein the result indicative of the illness is generated based on the comparison;
during the same examination and in response to the value being greater than the threshold value, automatically selecting a further control sequence configured to generate a contrast adapted for diagnosis of the illness and that specifies a subsequent actuation of the magnetic resonance device to capture second image data from the examination object during the same examination, the automatic selection of the further control sequence being based on the illness indicated by the result; and
during the same examination and in response to the value being less than the threshold value, automatically terminating the actuation of the magnetic resonance device.

2. The method as claimed in claim 1 , further comprising:
provisioning a trained function and/or a neural network, wherein the analysis of the first image data is performed using the trained function and/or the neural network.

3. The method as claimed in claim 1 , wherein the selection of the further control sequence comprises:
an automatic preselection of the selection of the further control sequence in response to the value being greater than the threshold value, and the termination of the actuation of the magnetic resonance device in response to the value being less than the threshold value; and
a confirmation of the preselection by a user.

4. The method as claimed in claim 1 , wherein the property comprises: an artifact; a susceptibility artifact; a lesion; a cyst; a hemangioma; a size of a structure; a texture of a structure; a movement of the examination object during the actuation of the magnetic resonance device according to the at least one first control sequence; and/or an abnormality.

5. The method as claimed in claim 1 , wherein the result comprises a presence of the property.

6. The method as claimed in claim 1 , wherein the result comprises a presence of a susceptibility artifact, the selected further control sequence including a control sequence configured to reduce metal artifacts.

7. The method as claimed in claim 1 , wherein the result comprises a presence of a movement above a movement threshold value, the selected further control sequence including a movement-insensitive control sequence.

8. The method as claimed in claim 1 , wherein:
the examination region is a prostate;
upon actuation of the magnetic resonance device according to the at least one first control sequence, an actuation of the magnetic resonance device is performed according to a T2-weighted control sequence and a diffusion-weighted control sequence; and
the first image data comprises T2-weighted data and diffusion-weighted data.

9. The method as claimed in claim 1 , wherein the result comprises a presence of a lesion, the selected further control sequence including a perfusion-weighted control sequence.

10. The method as claimed in claim 1 , wherein:
the examination region is a liver;
upon actuation of the magnetic resonance device according to the at least one first control sequence, an actuation of the magnetic resonance device takes places according to a T1-weighted control sequence and a T2-weighted control sequence without administering contrast agent to the examination object; and
the first image data comprises T1-weighted data and T2-weighted data.

11. The method as claimed in claim 1 , wherein, the selected further control sequence includes:
spectroscopy control sequence;
elastography control sequence;
diffusion-weighted control sequence; and/or
T1-weighted control sequence with administering of contrast agent to the examination object.

12. The method as claimed in claim 1 , wherein:
the examination region is a female breast;
upon actuation of the magnetic resonance device according to the at least one first control sequence, an actuation of the magnetic resonance device takes place according to a perfusion-weighted control sequence;
the first image data comprises perfusion-weighted data;
the result comprises a presence of a lesion; and
the selected further control sequence includes a T2-weighted control sequence.

13. A non-transitory computer-readable storage medium with an executable program stored thereon, that when executed, instructs a processor to perform a method comprising:
provisioning at least one first control sequence that specifies an actuation of the magnetic resonance device for generating image data;
actuating the magnetic resonance device, according to the at least one first control sequence, to capture first image data from the examination object during an examination, the first image data being generated by the actuation of the magnetic resonance device;
analyzing the first image data with respect to a property to generate a result indicative of an illness, the analysis of the first image data including a comparison of a value characterizing the property with a threshold value, wherein the result indicative of the illness is generated based on the comparison;
during the same examination and in response to the value being greater than the threshold value, automatically selecting a further control sequence configured to generate a contrast adapted for diagnosis of the illness and that specifies a subsequent actuation of the magnetic resonance device to capture second image data from the examination object during the same examination, the automatic selection of the further control sequence being based on the illness indicated by the result; and
during the same examination and in response to the value being less than the threshold value, automatically terminating the actuation of the magnetic resonance device.

14. A magnetic resonance (MR) device comprising:
a MR scanner; and
a controller configured to:
provision at least one first control sequence that specifies an actuation of the MR scanner for generating image data;
actuate the MR scanner, according to the at least one first control sequence, to capture first image data from the examination object during an examination, the first image data being generated by the actuation of the MR scanner;
analyze the first image data with respect to a property to generate a result indicative of an illness, the analysis of the first image data including a comparison of a value characterizing the property with a threshold value, wherein the result indicative of the illness is generated based on the comparison;
during the same examination and in response to the value being greater than the threshold value, automatically selecting a further control sequence configured to generate a contrast adapted for diagnosis of the illness and that specifies a subsequent actuation of the MR scanner to capture second image data from the examination object during the same examination, the selection of the further control sequence being base

Assignees

• Siemens Healthcare Gmbh
• Siemens Healthineers Ag

Inventors

• GRIMM Robert
• Kiefer Berthold
• Von Busch Heinrich

Classifications

• A61B5/704

  Tables · CPC title

• A61B5/055

  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging · CPC title

• 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

• G01R33/5602

  by filtering or weighting based on different relaxation times within the sample, e.g. T1 weighting using an inversion pulse · 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