Method and magnetic resonance apparatus for establishing a measurement protocol of a magnetic resonance data acquisition

Patent metadata

Field	Value
Publication number	US-9915716-B2
Application number	US-201514688281-A
Country	US
Kind code	B2
Filing date	Apr 16, 2015
Priority date	Apr 16, 2014
Publication date	Mar 13, 2018
Grant date	Mar 13, 2018

Abstract

In a method and magnetic resonance apparatus for establishing at least one measurement protocol of a magnetic resonance measurement of an examination object, the measurement parameters necessary for the magnetic resonance measurement of the examination object are set, at least one absorption variable according to the measurement parameters set is established, and at least one measurement protocol is established that includes further measurement parameters according to the established at least one absorption variable. A characteristic variable can be established that indicates the ability to carry out the at least one measurement protocol according to the at least one established absorption variable.

First claim

I claim as my invention:

1. A method for establishing at least one measurement protocol for executing a magnetic resonance (MR) data acquisition from an examination object, comprising:
in a computer, setting measurement parameters for an MR data acquisition from an examination object to be executed by operating an MR scanner with said measurement parameters;
entering a designation into said computer of a specific absorption rate (SAR) for said MR data acquisition;
in said computer, generating at least one measurement protocol that includes further measurement parameters according to the designated SAR;
from said computer, operating said MR scanner to execute said MR data acquisition using said measurement protocol that includes said further measurement parameters according to the designated SAR; and
at a display in communication with said computer while MR data acquisition is being executed, displaying said designated SAR together with a remaining measurement time that can occur in said MR data acquisition without said designated SAR being exceeded.

2. A method as claimed in claim 1 comprising, in said computer, establishing a characteristic variable that indicates an ability of said MR scanner to execute said at least one measurement protocol according to said designated SAR.

3. A method as claimed in claim 2 wherein said characteristic variable includes a designation of a waiting time.

4. A method as claimed in claim 1 comprising establishing said at least one measurement protocol by selecting a measurement protocol that includes said further measurement parameters.

5. A method as claimed in claim 4 comprising after selecting said measurement protocol, establishing said SAR again, and repeating the step of establishing said at least one measurement protocol.

6. A magnetic resonance (MR) apparatus comprising:
an MR scanner;
a computer configured to set measurement parameters for an MR data acquisition from an examination object to be executed by operating said MR scanner with said measurement parameters;
said computer being configured to receive a designation of a specific absorption rate (SAR) for said MR data acquisition;
said computer being configured to generate at least one measurement protocol that includes further measurement parameters according to said designated SAR;
said computer being configured to operate said MR scanner to execute said MR data acquisition using said measurement protocol that includes said further measurement parameters according to the designated SAR;
a display in communication with said computer; and
said computer being configured to display, while MR data acquisition is being executed, said designated SAR at said display together with a remaining measurement time that can occur in said MR data acquisition without said designated SAR being exceeded.

7. A non-transitory, computer-readable data storage medium encoded with programming instructions, said storage medium being loaded into a control computer of a magnetic resonance (MR) apparatus, and said programming instructions causing said control computer to:
set measurement parameters for an MR data acquisition from an examination object to be executed by operating an MR scanner with said measurement parameters;
receive a designation of a specific absorption rate (SAR) for said MR data acquisition;
generate at least one measurement protocol that includes further measurement parameters according to said designated SAR;
operate said MR scanner to execute said MR data acquisition using said measurement protocol that includes said further measurement parameters according to the designated SAR; and
display, at a display in communication with said control computer while MR data acquisition is being executed, said designated SAR together with a remaining measurement time that can occur in said MR data acquisition without said designated SAR being exceeded.

Assignees

• Siemens Ag

Inventors

• Meyer Heiko

Classifications

• G05B15/02

  electric · CPC title

• A61B5/72

  Signal processing specially adapted for physiological signals or for diagnostic purposes · 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