Magnetic resonance tomography preview

Patent metadata

Field	Value
Publication number	US-10424089-B2
Application number	US-201715437875-A
Country	US
Kind code	B2
Filing date	Feb 21, 2017
Priority date	Feb 22, 2016
Publication date	Sep 24, 2019
Grant date	Sep 24, 2019

Abstract

The disclosure relates to a method for reconstructing a preview of a magnetic resonance examination, a magnetic resonance apparatus, and a computer program product. The method includes recording a first set of magnetic resonance data, from which a second set of magnetic resonance data is selected. Based on the second set of magnetic resonance data, a preview is reconstructed.

First claim

The invention claimed is:

1. A method for reconstruction of a preview based on magnetic resonance data, the method comprising:
recording a first set of magnetic resonance data;
selecting a second set of magnetic resonance data from the first set of magnetic resonance data, wherein the selecting of the second set of magnetic resonance data comprises spatial delimitation, temporal delimitation, or a combination thereof; and
reconstructing a preview based on the second set of magnetic resonance data.

2. The method of claim 1 , wherein a compressed sensing technique, an iterative reconstruction technique, or the compressed technique and the iterative reconstruction technique are used in the reconstructing of the preview.

3. The method of claim 1 , further comprising:
evaluating, based on the preview, the first set of magnetic resonance data.

4. The method of claim 3 , further comprising:
recording a third set of magnetic resonance data following a negative evaluation of the first set of magnetic resonance data based on the preview.

5. The method of claim 3 , further comprising, following a positive evaluation of the first set of magnetic resonance data based on the preview:
reconstructing images based on a portion of the first set of magnetic resonance data, providing at least a portion of the first set of magnetic resonance data for image reconstruction, or reconstructing the images based on the portion of the first set of magnetic resonance data and providing the at least a portion of the first set of magnetic resonance data for image reconstruction.

6. The method of claim 5 , wherein the portion of the first set of magnetic resonance data comprises the second set of magnetic resonance data, the at least a portion of the first set of magnetic resonance data comprises the second set of magnetic resonance data, or both the portion of the first set of magnetic resonance data and the at least a portion of the first set of magnetic resonance data comprises the second set of magnetic resonance data.

7. The method claim 1 , wherein, directly following the reconstruction of the preview and based on the second set of magnetic resonance data, reconstruction of at least one portion of the first set of magnetic resonance data is started.

8. The method of claim 5 , wherein, in the reconstruction of the images, a compressed sensing technique, an iterative reconstruction technique, or the compressed sensing technique and the iterative reconstruction technique are used.

9. The method of claim 5 , wherein the preview has a substantially identical quality to the images.

10. The method of claim 5 , wherein the preview and the images are grouped together into consolidated images.

11. The method of claim 1 , wherein the selecting of the second set of magnetic resonance data is carried out by the spatial delimitation.

12. The method of claim 11 , wherein the spatial delimitation comprises a slice selection.

13. The method of claim 1 , wherein the selecting of the second set of magnetic resonance data is carried out by the temporal delimitation.

14. A magnetic resonance apparatus configured to record a first set of magnetic resonance data, the apparatus comprising:
a selector configured to select a second set of magnetic resonance data from the first set of magnetic resonance data, wherein the selecting of the second set of magnetic resonance data comprises spatial delimitation, temporal delimitation, or a combination thereof, and
a reconstructor configured to reconstruct a preview based on the second set of magnetic resonance data.

15. The magnetic resonance apparatus of claim 14 , wherein the reconstructor uses a compressed sensing technique, an iterative reconstruction technique, or the compressed technique and the iterative reconstruction technique in reconstructing the preview.

16. The magnetic resonance apparatus of claim 15 , further comprising:
an evaluator configured to evaluate, based on the preview, the first set of magnetic resonance data.

17. A computer program product comprising program code stored on a non-transitory computer-readable storage medium, the program code, when executed on a computer, is configured to:
record a first set of magnetic resonance data;
select a second set of magnetic resonance data from the first set of magnetic resonance data, wherein the selecting of the second set of magnetic resonance data comprises spatial delimitation, temporal delimitation, or a combination thereof; and
reconstruct a preview based on the second set of magnetic resonance data.

18. The computer program product of claim 17 , wherein a compressed sensing technique, an iterative reconstruction technique, or the compressed technique and the iterative reconstruction technique are used in reconstructing the preview.

19. The computer program product of claim 17 , further comprising program code, that when executed on a computer, is configured to:
evaluate, based on the preview, the first set of magnetic resonance data.

20. The computer program product of claim 19 , further comprising program code, that when executed on a computer, is configured to:
record a third set of magnetic resonance data following a negative evaluation of the first set of magnetic resonance data based on the preview.

Assignees

• Bauer Simon
• Horger Wilhelm
• Kartaeusch Ralf
• Siemens Healthcare Gmbh

Inventors

• Bauer Simon
• Horger Wilhelm
• Kartäusch Ralf

Classifications

• G06T12/00 Primary

  Tomographic reconstruction from projections · 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

• G01R33/5608

  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

• G01R33/561

  by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences · CPC title

• G06T2210/41

  Medical · CPC title