Method for recording diagnostic measurement data of a head of an examination object in head imaging via a magnetic resonance device

Patent metadata

Field	Value
Publication number	US-11733335-B2
Application number	US-202117408678-A
Country	US
Kind code	B2
Filing date	Aug 23, 2021
Priority date	Nov 21, 2016
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

A method is proposed for recording diagnostic measurement data of a head of an examination object in head imaging via a magnetic resonance device. The method comprises performing an overview scan of the head of the examination object, wherein overview measurement data is acquired in the overview scan and performing various diagnostic scans of the head of the examination object based on the acquired overview measurement data, wherein diagnostic measurement data is acquired in the various diagnostic scans.

First claim

The invention claimed is:

1. A method for recording diagnostic measurement data of a head of an examination object in head imaging via a magnetic resonance device, the method comprising:
performing an overview scan of the head of the examination object, the performing the overview scan including acquiring overview measurement data; and
performing various diagnostic scans of the head of the examination object based on the acquired overview measurement data, the performing the various diagnostic scans including acquiring diagnostic measurement data,
wherein the head imaging includes administering a contrast agent and the various diagnostic scans include a first diagnostic scan, a second diagnostic scan, a third diagnostic scan, a fourth diagnostic scan, a fifth diagnostic scan, a sixth diagnostic scan, a seventh diagnostic scan, and an eighth diagnostic scan,
and wherein of the various diagnostic scans, the first diagnostic scan, the fourth diagnostic scan, the seventh diagnostic scan, and the eighth diagnostic scan have a T1 contrast,
the second diagnostic scan has a T2 contrast with cerebrospinal fluid suppression and a longest repetition time of the various diagnostic scans,
the third diagnostic scan has a susceptibility-weighted contrast,
the fifth diagnostic scan has a diffusion-weighted contrast, and
the sixth diagnostic scan has a T2 contrast.

2. The method as claimed in claim 1 ,
wherein the diagnostic measurement data from the first diagnostic scan is acquired using a gradient echo magnetic resonance sequence, the gradient echo magnetic resonance sequence including a Fast Low-Angle Shot (FLASH′ magnetic resonance sequence.

3. The method as claimed in claim 1 ,
wherein the diagnostic measurement data from the fourth diagnostic scan is recorded in full in less than 50 seconds.

4. The method as claimed in claim 1 ,
wherein the seventh diagnostic scan and the fourth diagnostic scan are based on a same diagnostic scan protocol,
the fourth diagnostic scan is performed before administration of the contrast agent to the examination object, and
the seventh diagnostic scan is performed after administration of the contrast agent to the examination object.

5. The method as claimed in claim 1 ,
wherein the eighth diagnostic scan is acquired using a three dimensional gradient echo magnetic resonance sequence with preparation of magnetization with inversion recovery.

6. The method as claimed in claim 1 ,
wherein a first contrast between Gray Matter and White Matter in the eighth diagnostic scan is greater than a second contrast between Gray Mater and White Matter in the first diagnostic scan.

7. The method as claimed in claim 1 ,
wherein the first diagnostic scan, the second diagnostic scan, the third diagnostic scan, and the fourth diagnostic scan are performed before administration of the contrast agent.

8. The method as claimed in claim 1 ,
wherein at least two diagnostic scans of the various diagnostic scans have a different orientation.

9. The method as claimed in claim 1 ,
wherein at least two diagnostic scans of the various diagnostic scans are recorded based on spin echo magnetic resonance sequences.

10. The method as claimed in claim 1 ,
wherein at least five diagnostic scans of the various diagnostic scans are recorded based on gradient echo magnetic resonance sequences.

11. The method as claimed in claim 10 ,
wherein at least one diagnostic scan of the at least five diagnostic scans is recorded based on an EPI magnetic resonance sequence.

12. The method as claimed in claim 1 ,
wherein a bandwidth of frequency coding for the fifth diagnostic scan is greater than 1000 Hertz per pixel.

13. The method as claimed in claim 1 ,
wherein an echo time of the first diagnostic scan differs from an echo time of the fourth diagnostic scan by a maximum of 0.3 ms,
the echo time of the first diagnostic scan differs from an echo time of the seventh diagnostic scan by a maximum of 0.3 ms, and
the echo time of the fourth diagnostic scan differs from the echo time of the seventh diagnostic scan by a maximum of 0.3 ms.

14. The method as claimed in claim 1 ,
wherein at least two diagnostic scans of the various diagnostic scans are recorded two-dimensionally and with fat saturation.

15. The method as claimed in claim 1 ,
wherein at least four diagnostic scans of the various diagnostic scans have a same number of voxels per layer in at least one direction.

16. A magnetic resonance device comprising:
a measurement data acquisition unit; and
a computing unit, wherein
the magnetic resonance device is configured to perform the method of claim 1 by using the computing unit to control the measurement data acquisition unit.

17. A non-transitory computer readable medium including computer-readable instructions which, when executed by at least one processor, cause the at least one processor to perform the method of claim 1 .

18. A method for recording diagnostic measurement data of a head of an examination object in head imaging via a magnetic resonance device, the method comprising:
performing an overview scan of the head of the examination object, the performing the overview scan including acquiring overview measurement data; and
performing various diagnostic scans of the head of the examination object based on the acquired overview measurement data, the performing the various diagnostic scans including acquiring diagnostic measurement data,
wherein the head imaging includes administering a contrast agent and the various diagnostic scans include a first diagnostic scan, a second diagnostic scan, a third diagnostic scan, a fourth diagnostic scan, a fifth diagnostic scan, a sixth diagnostic scan, a seventh diagnostic scan, and an eighth diagnostic scan,
and wherein of the various diagnostic scans, the first diagnostic scan, the fourth diagnostic scan, the seventh diagnostic scan, and the eighth diagnostic scan have a T1 contrast,
the second diagnostic scan has a T2 contrast with cerebrospinal fluid suppression,
the third diagnostic scan has a susceptibility-weighted contrast,
the fifth diagnostic scan has a diffusion-weighted contrast, and
the sixth diagnostic scan has a T2 contrast,
wherein a repetition time of the sixth diagnostic scan is at least 20 times as long as a repetition time of the first diagnostic scan.

19. A method for recording diagnostic measurement data of a head of an examination object in head imaging via a magnetic resonance device, the method comprising:
performing an overview scan of the head of the examination object, the performing the overview scan including acquiring overview measurement data; and
performing various diagnostic scans of the head of the examination object based on the acquired overview measurement data, the performing the various diagnostic scans including acquiring diagnostic measurement data,
wherein the head imaging includes administering a contrast agent and the various diagnostic scans include a first diagnostic scan, a second diagnostic scan, a third diagnostic scan, a fourth diagnostic scan, a fifth diagnostic scan, a sixth diagnostic scan, a seventh diagnostic scan, and an eighth diagnostic scan,
and wherein of the various diagnostic scans, the first diagnostic scan, the fourth diagnostic scan, the seventh diagnostic scan, and the eighth diagnostic scan have a T1 contrast,
the second diagnostic scan has a T2 contrast with cerebrospinal fluid suppression,
the third diagnostic scan has a susceptibility-weighted contrast,
the fifth diagnostic sca

Assignees

• Siemens Healthcare Gmbh
• Massachusetts Gen Hospital

Inventors

• Heberlein Keith Aaron
• Witzel Thomas

Classifications

• G01R33/5601 Primary

  involving use of a contrast agent for contrast manipulation, e.g. a paramagnetic, super-paramagnetic, ferromagnetic or hyperpolarised contrast agent · CPC title

• A61B5/055 Primary

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

• A61B5/0042

  for the brain · CPC title

• G01R33/5613

  Generating steady state signals, e.g. low flip angle sequences [FLASH] · CPC title

• A61B5/74

  Details of notification to user or communication with user or patient; User input means · CPC title