Results 141 to 150 of about 3,891 (187)

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.
Martin R Prince, Pascal Spincemaille, Yi Wang   +2 more
exaly   +3 more sources

QSM Throughout the Body

Journal of Magnetic Resonance Imaging, 2023
Magnetic materials in tissue, such as iron, calcium, or collagen, can be studied using quantitative susceptibility mapping (QSM). To date, QSM has been overwhelmingly applied in the brain, but is increasingly utilized outside the brain. QSM relies on the effect of tissue magnetic susceptibility sources on the MR signal phase obtained with gradient echo
Alexey V. Dimov, Jiahao Li, Thanh D. Nguyen, Alexandra G. Roberts, Pascal Spincemaille, Sina Straub, Zungho Zun, Martin R. Prince, Yi Wang   +8 more
openaire   +2 more sources

Realistic in silico abdominal QSM phantom

ISMRM Annual Meeting, 2023
Compared to Quantitative Susceptibility Mapping (QSM) in the brain, abdominal QSM faces additional issues due to the presence of gas and fatty tissue. Recent works in abdominal QSM are more focused on its feasibility as a biomarker for disease diagnosis than improving or assessing the robustness and quality of the reconstructions.
Javier Silva, Carlos Milovic, Mathias Lambert, Cristian Montalba, Cristobal Arrieta, Sergio Uribe, Cristian Tejos   +6 more
openaire   +1 more source

Scale-Invariant Deep Learning Approach for QSM Reconstruction: SI-QSM

2023
Mapas cuantitativos de susceptibilidad (QSM) es una técnica basada en resonancia magnética que permite cuantificar la susceptibilidad magnética de los tejidos. Esta técnica ha surgido como un biomarcador potencial para varias enfermedades neurológicas.
openaire   +2 more sources

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
Stewart, Ashley, Eckstein, Korbinian, Dao, Thuy Thanh, Bollmann, Steffen   +3 more
openaire   +2 more sources

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

Parallel hashing algorithms on BSP and QSM models

18th International Parallel and Distributed Processing Symposium, 2004. Proceedings., 2004
Summary form only given. We study two parallel computing models - the bulk synchronous parallel (BSP) and the queued shared memory (QSM) - as alternatives to the PRAM model to provide more accurate performance predictions and analyses, and compares the two models in detail. As a case study, we consider a simple hashing problem, design the two versions -
openaire   +1 more source

Models of the Queensland Economy: QSM and QGEM

IFAC Proceedings Volumes, 1995
Abstract Queensland Treasury is at the forefront of regional economic model development in Australia. Over the last seven years Treasury has continued the development of the Queensland State Model (QSM). The extensive detail contained in QSM is almost unparrelled in regional econometric modelling in Australia and internationally.
Peter Crossman, Shaun Bond, Jim Hurley, Antony Skinner   +3 more
openaire   +1 more source

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

Experimental evaluation of QSM, a simple shared-memory model

Proceedings 13th International Parallel Processing Symposium and 10th Symposium on Parallel and Distributed Processing. IPPS/SPDP 1999, 2003
Parallel programming models should attempt to satisfy two conflicting goals. On one hand, they should hide architectural details so that algorithm designers can write simple, portable programs. On the other hand, models must expose architectural details so that designers can evaluate and optimize the performance of their algorithms.
Brian Grayson, Michael Dahlin, Vijaya Ramachandran   +2 more
openaire   +1 more source