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Recurrent inference machines as inverse problem solvers for MR relaxometry

E.R. Sabidussi, S. Klein, M.W.A. Caan, S. Bazrafkan, A.J. den Dekker, J. Sijbers, W.J. Niessen, D.H.J. Poot
2021 Medical Image Analysis  
In this paper, we propose the use of Recurrent Inference Machines (RIMs) to perform T1 and T2 mapping.  ...  Previously, RIMs were used to solve linear inverse reconstruction problems.  ...  Discussion This work presented a novel approach for MR relaxometry using Recurrent Inference Machines.  ... 
doi:10.1016/j.media.2021.102220 pmid:34543912 fatcat:egyeyxb3drgnnh4kp7drvwoghy

Modeling & Analysis

2003 NeuroImage  
Abstract In general the inverse problem (IP) in MEG is ill posed: extra constraints are necessary to solve and stabilize the IP.  ...  For illustration, the site of activation (increased voxals only) for cold is denoted in blue: round as cold, diamond as cold-pain; head in red: round as heat, diamond as heat-pain for 4 conditions.  ...  For making inferences in fixed or random effects analyses, we use classical t-or F-statistics to compute p-values for temporally localized effects in peri-stimulus time or in the time-frequency domain.  ... 
doi:10.1016/s1053-8119(05)70006-9 fatcat:zff2suxcofbxvetfrwfwcxi3zm

Unsupervised learning for vascular heterogeneity assessment of glioblastoma based on magnetic resonance imaging: The Hemodynamic Tissue Signature [article]

Javier Juan-Albarracín
2020 arXiv   pre-print
Finally, the methods, technologies and original ideas conceived in this thesis led to the foundation of ONCOANALYTICS CDX, a company framed into the business model of companion diagnostics for pharmaceutical  ...  This thesis focuses on the research and development of the Hemodynamic Tissue Signature (HTS) method: an unsupervised machine learning approach to describe the vascular heterogeneity of glioblastomas by  ...  Recent filters such as the NLM introduced by Buades et al (2005b) has improved the existing techniques for MR data.  ... 
arXiv:2009.06288v1 fatcat:dum2y7fuuve73lxbb2any6iak4

A - Postgraduate Educational Programme

2010 Insights into Imaging  
CEUS: Occasional problem solver for equivocal liver lesions. CE EUS has been disappointing.  ...  All imaging data should possibly be collected on one machine and as fast as possible.  ...  It shows the methods for MR signal acquisition and its processing. It presents technical as well as clinical factors which impact the quality of.  ... 
doi:10.1007/s13244-010-0010-2 pmid:23099630 pmcid:PMC3534349 fatcat:5fiszmj5unftrhizcn3encksgy

Postgraduate Educational Programme

2009 European Radiology  
CEUS: Occasional problem solver for equivocal liver lesions. CE EUS has been disappointing.  ...  All imaging data should possibly be collected on one machine and as fast as possible.  ...  It shows the methods for MR signal acquisition and its processing. It presents technical as well as clinical factors which impact the quality of.  ... 
doi:10.1007/s00330-009-1374-x pmid:19288110 fatcat:blzt6eohybeqjngnpyzlw7un6a

A postgraduate educational programme

2002 European Radiology  
CEUS: Occasional problem solver for equivocal liver lesions. CE EUS has been disappointing.  ...  All imaging data should possibly be collected on one machine and as fast as possible.  ...  It shows the methods for MR signal acquisition and its processing. It presents technical as well as clinical factors which impact the quality of.  ... 
doi:10.1007/s00330-002-0001-x fatcat:swpi4r6hzrgozpfxwqgz55bmvi

Postgraduate Educational Programme

2008 European Radiology Supplements  
CEUS: Occasional problem solver for equivocal liver lesions. CE EUS has been disappointing.  ...  All imaging data should possibly be collected on one machine and as fast as possible.  ...  It shows the methods for MR signal acquisition and its processing. It presents technical as well as clinical factors which impact the quality of.  ... 
doi:10.1007/s10406-008-0001-2 fatcat:gzbh2ky3enhabmfr7tz42qqqwi

73. Jahrestagung der Deutschen Geophysikalischen Gesellschaft : 4.–7. März 2013 in Leipzig [article]

Deutsche Geophysikalische Gesellschaft
2013
Acknowledgments: This work was funded by the Deutsche Forschungsgemeinschaft (DFG) and the German Federal Ministry for the Environment (BMU).  ...  ., for the workers and machines.  ...  from NMR relaxometry data.  ... 
doi:10.2312/dgg73 fatcat:wx2hmkf5cnbjffoyqwyrfiyye4

Measurement of brain oxygenation and metabolism in a mouse model of multiple sclerosis [article]

Thomas Wade Johnson, University Of Calgary, University Of Calgary, Jeff Dunn
2017
The NIRS-MR system was validated by detecting changes in the cerebral metabolic rate for oxygen (CMRO2) when mice were subjected to hypothermia.  ...  Overall this study showed that NIRS-MR can [...]  ...  A relapse is defined as a recurrence of neurological symptoms for longer than 24 hours, is described as an acute immune system attack on WM and myelin-containing GM, and is explained well as an autoimmune  ... 
doi:10.11575/prism/26846 fatcat:brrazxgxivaa3j5v3mp7kr4u7a