Method and device for determining a change over time in a biomarker in a region to be examined

Patent metadata

Field	Value
Publication number	US-9651639-B2
Application number	US-201313894623-A
Country	US
Kind code	B2
Filing date	May 15, 2013
Priority date	May 30, 2012
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

A method for determining a change over time in a biomarker in a region to be examined of a patient is provided. The change is determined from magnetic resonance data using a magnetic resonance measuring system with sequences and protocols for measuring the biomarkers by functional resting state connectivity by rsfMRI, perfusion values, magnetic resonance spectra of voxels, or morphometry of organs. A control unit has programs which evaluates the biomarker and a data memory which stores the results of the evaluation and additional data. During a first examination, a quantity result of the biomarkers is determined and stored in the data memory. During a follow-up examination, at least one previous item of the result and additional data from the first examination stored in the data memory are used for determining a quantitative change in the biomarker.

First claim

The invention claimed is:

1. A method for determining a change over time in a biomarker in a region to be examined of a patient from magnetic resonance data, comprising:
exciting a first magnetic resonance signal in the region using a first magnetic resonance measuring sequence for detecting at least one property of the biomarker in the region;
receiving a first magnetic resonance data from the region, wherein the first magnetic resonance data comprises a first item of information relating to the at least one property;
extracting the first item of information from the first magnetic resonance data and producing a first biomarker value from the first item of information;
storing the first biomarker value together with patient information;
exciting a second magnetic resonance signal in the region using a second magnetic resonance measuring sequence for detecting the at least one property of the biomarker in the region in a follow-up examination;
receiving a second magnetic resonance data from the region in the follow-up examination, wherein the second magnetic resonance data comprises a second item of information relating to the at least one property;
extracting the second item of information from the second magnetic resonance data and producing a second biomarker value from the second item of information in the follow-up examination;
storing the second biomarker value together with the patient information in the follow-up examination;
determining a change between the first and the second biomarker values using the patient information; and
storing or outputting the change between the first and the second biomarker values using the patient information,
wherein the biomarker is selected from the group consisting of:
a correlation between individual areas of the patient's brain, with the first and the second magnetic resonance measuring sequences being designed as a resting state magnetic resonance sequence,
a perfusion behavior in individual areas of the patient's brain, with the first and the second magnetic resonance measuring sequences being designed as an Arterial Spin Labeling sequence, and
a morphology of an area of the patient's brain, with the at least one property being the size of the area of the patient's brain.

2. The method as claimed in claim 1 , wherein the first and the second image data are respectively reconstructed from the first and the second magnetic resonance data, and wherein the first or the second image data are stored together with the first or the second biomarker value and the patient information.

3. The method as claimed in claim 1 , wherein parameters used during the first magnetic resonance measuring sequence are stored together with the first biomarker value and the patient information, and wherein the parameters are used again during the second magnetic resonance measuring sequence.

4. The method as claimed in claim 1 , wherein the extracted first item of information is stored together with the first biomarker value and is used again during the second magnetic resonance measuring sequence in the follow-up examination.

5. The method as claimed in claim 1 , wherein the storage occurs on a central data memory via a data network.

6. The method as claimed in claim 5 , wherein the data network is Internet.

7. The method as claimed in claim 1 , wherein the biomarker is the correlation between individual areas of the patient's brain.

8. The method as claimed in claim 1 , wherein the biomarker is the perfusion behavior in individual areas of the patient's brain.

9. The method as claimed in claim 1 , wherein the biomarker is the morphology of an area of the patient's brain.

10. The method as claimed in claim 1 , wherein the first and the second magnetic resonance data are calibrated with each other before the extraction.

11. The method as claimed in claim 1 , wherein the first and the second magnetic resonance data are imaged rotatorily and translationally onto each other.

12. The method as claimed in claim 1 , wherein further patient information is received in a data memory and can be retrieved together with the change between the first and the second biomarker values using the patient information.

13. The method as claimed in claim 12 , wherein an expert system is connected to the data memory and is trained by data stored in the data memory and/or evaluations in a correlation of the biomarker and a treatment.

14. A device for determining a change over time in a biomarker in a region to be examined of a patient from magnetic resonance data, comprising:
a magnetic resonance device that measures the biomarker;
a control unit connected to the magnetic resonance device and adapted to evaluate the biomarker; and
a data memory connected to the control unit for storing results of the evaluation,
wherein the control unit is adapted to use at least one previous result of the evaluation from the data memory to determine a quantitative change in the biomarker during a follow-up examination, and
wherein the biomarker is selected from the group consisting of:
a correlation between individual areas of the patient's brain, with a magnetic resonance measuring sequence being designed as a resting state magnetic resonance sequence,
a perfusion behavior in individual areas of the patient's brain, with the magnetic resonance measuring sequence being designed as an Arterial Spin Labeling sequence, and
a morphology of an area of the patient's brain, with at least one property being the size of the area of the patient's brain.

15. The device as claimed in claim 14 , wherein the control unit is adapted to use at least one previous item of image information from the data memory to determine the quantitative change in the biomarker during the follow-up examination.

16. A method for determining a change over time in a biomarker in a region to be examined of a patient from magnetic resonance data, comprising:
exciting a first magnetic resonance signal in the region using a first magnetic resonance measuring sequence for detecting at least one property of the biomarker in the region;
receiving a first magnetic resonance data from the region, wherein the first magnetic resonance data comprises a first item of information relating to the at least one property;
extracting the first item of information from the first magnetic resonance data and producing a first biomarker value from the first item of information;
storing the first biomarker value together with patient information;
exciting a second magnetic resonance signal in the region using a second magnetic resonance measuring sequence for detecting the at least one property of the biomarker in the region in a follow-up examination;
receiving a second magnetic resonance data from the region in the follow-up examination, wherein the second magnetic resonance data comprises a second item of information relating to the at least one property;
extracting the second item of information from the second magnetic resonance data and producing a second biomarker value from the second item of information in the follow-up examination;
storing the second biomarker value together with the patient information in the follow-up examination;
determining a change between the first and the second biomarker values using the patient information; and
storing or outputting the change between the first and the second biomarker values using the patient information,
wherein the first and the second magnetic resonance data are imaged rotatorily and translationally onto each other.

17. The method as claimed in claim 16 , whe

Assignees

• Heismann Björn
• Hengerer Arne
• Schmidt Sebastian
• Siemens Healthcare Gmbh

Inventors

• Heismann Björn
• Hengerer Arne
• Schmidt Sebastian

Classifications

• G01R33/48

  NMR imaging systems · CPC title

• G01R33/485 Primary

  based on chemical shift information {[CSI] or spectroscopic imaging, e.g. to acquire the spatial distributions of metabolites} · CPC title

• G01R33/4806

  Functional imaging of brain activation · CPC title

• G01R33/56366

  Perfusion imaging · CPC title

• A61B5/055

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