Invention Grant
- Patent Title: Direct measurement of the B0-off-resonance field during magnetic resonance fingerprinting
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Application No.: US16339405Application Date: 2017-09-22
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Publication No.: US11041925B2Publication Date: 2021-06-22
- Inventor: Jan Jakob Meineke , Thomas Erik Amthor , Peter Koken , Karsten Sommer
- Applicant: KONINKLIJKE PHILIPS N.V.
- Applicant Address: NL Eindhoven
- Assignee: KONINKLIJKE PHILIPS N.V.
- Current Assignee: KONINKLIJKE PHILIPS N.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP16192638 20161006
- International Application: PCT/EP2017/073974 WO 20170922
- International Announcement: WO2018/065233 WO 20180412
- Main IPC: G01R33/44
- IPC: G01R33/44 ; G01R33/24 ; G01R33/56 ; G01R33/50

Abstract:
A processor controls an MRI system with pulse sequence commands to acquire magnetic resonance data according to a magnetic resonance fingerprinting protocol during multiple pulse repetitions. The pulse sequence commands control the magnetic resonance imaging system to cause gradient induced spin rephasing at least twice during each of the multiple pulse repetitions, and to acquire at least two magnetic resonance signals during each of the multiple pulse repetitions. Each of the at least two magnetic resonance signals is measured during a separate one of the gradient induced spin rephasing. The magnetic resonance data includes the at least two magnetic resonance signals acquired during each of the multiple pulse repetitions. The processor further at least partially calculates a B0-off-resonance map using the magnetic resonance data, and generates at least one magnetic resonance parametric map by comparing the magnetic resonance data with a magnetic resonance fingerprinting dictionary.
Public/Granted literature
- US20190242961A1 DIRECT MEASUREMENT OF THE B0-OFF-RESONANCE FIELD DURING MAGNETIC RESONANCE FINGERPRINTING Public/Granted day:2019-08-08
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