Volume 80, Issue 6 pp. 2485-2500
Full Paper

Image reconstruction algorithm for motion insensitive MR Fingerprinting (MRF): MORF

Bhairav Bipin Mehta

Bhairav Bipin Mehta

Department of Radiology, Case Western Reserve University, Cleveland, Ohio

Search for more papers by this author
Dan Ma

Dan Ma

Department of Radiology, Case Western Reserve University, Cleveland, Ohio

Search for more papers by this author
Eric Yann Pierre

Eric Yann Pierre

Imaging Division, The Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia

Search for more papers by this author
Yun Jiang

Yun Jiang

Department of Radiology, Case Western Reserve University, Cleveland, Ohio

Search for more papers by this author
Simone Coppo

Simone Coppo

Department of Radiology, Case Western Reserve University, Cleveland, Ohio

Search for more papers by this author
Mark Alan Griswold

Corresponding Author

Mark Alan Griswold

Department of Radiology, Case Western Reserve University, Cleveland, Ohio

Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio

Correspondence Mark Alan Griswold, Case Western Reserve University, 11100 Euclid Avenue - Bolwell B121, Cleveland, OH 44106, USA. Email: [email protected]Search for more papers by this author
First published: 06 May 2018
Citations: 34

Funding Information: Support for this study was provided by NIH 1R01EB016728-01A1, NIH 5R01EB017219-02, and Siemens Healthcare. This work made use of the High Performance Computing Resource in the Core Facility for Advanced Research Computing at Case Western Reserve University

Abstract

Purpose

The purpose of this study is to increase the robustness of MR fingerprinting (MRF) toward subject motion.

Methods

A novel reconstruction algorithm, MOtion insensitive MRF (MORF), was developed, which uses an iterative reconstruction based retrospective motion correction approach. Each iteration loops through the following steps: pattern recognition, metric based identification of motion corrupted frames, registration based motion estimation, and motion compensated data consistency verification. The proposed algorithm was validated using in vivo 2D brain MRF data with retrospective in-plane motion introduced at different stages of the acquisition. The validation was performed using qualitative and quantitative comparisons between results from MORF, the iterative multi-scale (IMS) algorithm, and with the IMS results using data without motion for a ground truth comparison. Additionally, the MORF algorithm was evaluated in prospectively motion corrupted in vivo 2D brain MRF datasets.

Results

For datasets corrupted by in-plane motion both prospectively and retrospectively, MORF noticeably reduced motion artifacts compared with iterative multi-scale and closely resembled the results from data without motion, even when ∼54% of data was motion corrupted during different parts of the acquisition.

Conclusions

MORF improves the insensitivity of MRF toward rigid-body motion occurring during any part of the MRF acquisition.

CONFLICT OF INTEREST

The authors receive research support from Siemens.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.