Fast Simultaneous Multi-Slice Multi-Shell Diffusion Tensor Imaging with Model-based Reconstruction

Oliver Maier, Stefan Manfred Spann, Lea Bogensperger, Rudolf Stollberger

Research output: Contribution to conferenceAbstractpeer-review

Abstract

Multi-Shell DTI suffers from low SNR for high b-value data and prolonged scan time. The Gaussian noise assumption is
typically violated due to multi-coil imaging and magnitude forming thus requiring special treatment to avoid biases in
the DTI estimates. To this end, we propose a model-based reconstruction technique to exploit the Gaussian noise in the
raw k-space data and enable acceleration of the DTI measurement. We show the acceleration potential and quantitative
accuracy of the proposed method for mono- and bi-exponential fitting approaches on freely available DTI data and full
brain DTI measurements of one healthy volunteer.
Original languageEnglish
Pages4365
Publication statusPublished - 2020
Event2020 ISMRM & SMRT Virtual Conference & Exhibition - Virtuell
Duration: 8 Aug 202014 Aug 2020

Conference

Conference2020 ISMRM & SMRT Virtual Conference & Exhibition
Abbreviated titleISMRM 2020
CityVirtuell
Period8/08/2014/08/20

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