Modification of pulse sequence parameters for magnetic resonance imaging

摘要

The present invention provides a magnetic resonance imaging system 100 for acquiring magnetic resonance data 154 from the imaging zone 108. The magnetic resonance imaging system includes a memory 136 for storing initial pulse sequence commands 140 and machine-executable instructions 160, and a processor 130 for controlling the magnetic resonance imaging system. Execution of the machine-executable instructions causes the processor to receive a selected set of pulse sequence parameters 142 that includes a definition of the region of interest 109 of the subject 118 (200). The region of interest is located in the imaging zone. Upon execution of the machine-executable instructions, the processor further sends an image data request to the history database 138 (202). The image data request includes the selected set of pulse sequence parameters. Upon execution of the machine-executable instructions, the processor further receives history image data 146, 306, 308, 310, 312, 314, 402 from the history database in response to the image data request (204). The history database includes a plurality of image data entries. Each image data entry includes a set 502 of historical pulse sequence parameters. The history database is configured to search the history database to retrieve the history image data by matching the selected set of pulse sequence parameters with the set of history pulse sequence parameters. Upon execution of the machine-executable instructions, the processor further displays at least a portion 148 of the historical image data on a user interface (206). Upon execution of the machine-executable instructions, the processor further receives a scan input change 150 in response to displaying the at least a portion of the historical image data on the user interface (208). Upon execution of the machine-executable instruction, the processor further generates a modified pulse sequence command 152 using the initial pulse sequence command, the selected set of pulse sequence parameters, and the scan input modification. (210). Upon execution of the machine-executable instructions, the processor further controls the magnetic resonance imaging system to acquire the magnetic resonance data using the modified pulse sequence command (212).