Accelerated magnetic resonance fingerprinting using soft-weighted key-hole (MRF-SOHO).

ABSTRACT:

Object

To develop a novel approach for highly accelerated Magnetic Resonance Fingerprinting (MRF) acquisition.

Materials and methods

The proposed method combines parallel imaging, soft-gating and key-hole approaches to highly accelerate MRF acquisition. Slowly varying flip angles (FA), commonly used during MRF acquisition, lead to a smooth change in the signal contrast of consecutive time-point images. This assumption enables sharing of high frequency data between different time-points, similar to what is done in some dynamic MR imaging methods such as key-hole. The proposed approach exploits this information using a SOft-weighted key-HOle (MRF-SOHO) reconstruction to achieve high acceleration factors and/or increased resolution without compromising image quality or increasi

SUBMITTER: Cruz G 

PROVIDER: S-EPMC6084944 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature