Results 171 to 180 of about 11,693 (198)

QSM-CI: An automated continuous QSM challenge

ISMRM Annual Meeting
Motivation: Reconstruction challenges for Quantitative Susceptibility Mapping (QSM) offer a common evaluation but are challenging to run and offer only a single snapshot of algorithm performance in time. Goal(s): To develop a QSM challenge with continuous integration (QSM-CI), enabling automatic, transparent evaluation of community-submitted algorithms
Ashley Stewart, Korbinian Eckstein, Thuy Thanh Dao, Steffen Bollmann   +3 more
openaire   +1 more source

Thin slab susceptibility mapping (QSM)

2023
A pair of high- and low-resolution ...
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Realistic Abdominal QSM phantom

ISMRM Annual Meeting
Abdominal Quantitative Susceptibility Mapping (QSM) involves a series of additional challenges compared with brain QSM, mainly because of the presence of undesired contributions related to fat and gasses. Previously, we proposed a QSM phantom with fat contributions, which emulated different susceptibility scenarios in the abdominal region. In this work,
Javier Silva, Mathias Lambert, Carlos Milovic, Sergio Uribe, Cristian Tejos   +4 more
openaire   +1 more source

Fast Submillimeter QSM for Simultaneous QSM/MRSI of the Brain at 7T

ISMRM Annual Meeting
The feasibility of simultaneous QSM and MRSI has been recently demonstrated using SPICE. But the resolution of QSM obtained by SPICE at 7T is limited to only 3 mm due to bandwidth requirements. To overcome the resolution limitation, this work proposes a fast acquisition sequence for high-resolution encoding, and a model-based method to reconstruct from
Rong Guo, Yudu Li, Yibo Zhao, Aaron Anderson, Pallab Bhattacharyya, Mark Lowe, Yao Li, Brad Sutton, Zhi-Pei Liang   +8 more
openaire   +1 more source

Computationally efficient multi-echo QSM

ISMRM Annual Meeting
With increasingly popular multi-echo QSM, the combination of echoes becomes important in terms of accuracy, SNR and computation time. We compared 6 different pipelines with quantitative and Laplacian unwrapping and three different echo combination approaches, weighted averaging of QSMs, combination of the phase, and non-linear fitting.
Korbinian Eckstein, Thanh Dao, Ashley Stewart, Simon Robinson, Markus Barth, Steffen Bollmann   +5 more
openaire   +1 more source

Quality Sequencing Minimum - QSM

2018
Supporting Material for The Quality Sequencing Minimum (QSM): providing comprehensive, consistent, transparent next generation sequencing data quality ...
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Automated QSM Processing in Multiple Sclerosis

ISMRM Annual Meeting
In this work, an automated and scalable processing tool for Quantitative Susceptibility Mapping (QSM), QSMxT, is applied to a large dataset of 3D echo-planar imaging (3D-EPI) acquisitions of Multiple Sclerosis (MS) patients and volunteer controls. This is used to reconstruct QSMs for all subjects and generate a group space for the study. MS lesions are
Ashley Stewart, Po-Jui Liu, Matthias Weigel, Steffen Bollmann, Cristina Granziera   +4 more
openaire   +1 more source

Patents on Quantitative Susceptibility Mapping (QSM) of Tissue Magnetism

Recent Patents on Biotechnology, 2019
<P>Background: Quantitative susceptibility mapping (QSM) depicts biodistributions of tissue magnetic susceptibility sources, including endogenous iron and calcifications, as well as exogenous paramagnetic contrast agents and probes. When comparing QSM with simple susceptibility weighted MRI, QSM eliminates blooming artifacts and shows ...
Feng, Lin, Martin R, Prince, Pascal, Spincemaille, Yi, Wang   +3 more
openaire   +2 more sources

An optimal integrated QSMS model from cluster analysis

The TQM Journal, 2017
PurposeThe purpose of this paper is to develop an optimal model of an integrated quality and safety management system (QSMS).Design/methodology/approachKeywords related with these systems were identified from international standards and subsequently mined from a selection of peer reviewed articles that discuss and propose varying forms of integrated ...
Michael E. Odigie, M. Affan Badar, John W. Sinn, Farman Moayed, A. Mehran Shahhosseini   +4 more
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Characterization of Cardiac Quantitative Susceptibility Mapping (QSM)

ISMRM Annual Meeting
Cardiac Quantitative Susceptibility Mapping (QSM) is a promising technique for the evaluation of iron levels in the myocardium, particularly after a hemorrhagic infarction. In this abstract, we validate the accuracy of our QSM acquisition and reconstruction procedure in phantom experiments, and characterize its precision and repeatability in the ...
Andrew Tyler, Li Huang, Radhouene Neji, Ronald Mooiweer, Pier-Giorgio Masci, Sébastien Roujol   +5 more
openaire   +1 more source