Magnetic resonance fingerprinting (MRF) with simultaneous multivolume acquisition

US9897675B2 · kind B2 · utility

Assignees

• CASE WESTERN RESERVE UNIVERSITY · US
• The General Hospital Corporation · US

Inventors

• Kawin Setsompop · Boston, US
• Mark A. Griswold · Shaker Heights, US
• Huihui Ye · Hangzhou City, CN
• Lawrence L. Wald · Cambridge, US
• Dan Ma · Cleveland, US
• Yun Jiang · Cleveland, US

Key dates

• Filing date: May 14, 2015
• Grant date: Feb 20, 2018
• Expiry date: Jul 1, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/5613
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Magnetic resonance fingerprinting (MRF) with simultaneous multivolume acquisition (SMVA) is described. One example nuclear magnetic resonance (NMR) apparatus includes an NMR logic that repetitively and variably samples (k, t, E) spaces associated with different volumes (e.g., slices) in an object to simultaneously acquire sets of NMR signals that are associated with different points in the (k, t, E) spaces. Sampling is performed with t and/or E varying in a non-constant way. The NMR apparatus may also include a signal logic that produces an NMR signal evolution from the NMR signals and compares the NMR signal evolution to reference signal evolutions. Since different volumes are excited differently, resulting signal evolutions can be acquired simultaneously from the different volumes and NMR parameters may be simultaneously determined for the multiple volumes, which reduces acquisition time and parameter map creation time.