Results 181 to 190 of about 11,693 (198)

A quantum similarity matrix (QSM) Aufbau procedure

Journal of Mathematical Chemistry, 2007
An Aufbau recursive algorithm, leading to the construction of molecular Quantum similarity matrices (QSM) with positive definite structure is described. As a consequence, Molecular Quantum Similarity measures optimization has to be restricted by a recursive constraint, related to the Euclidian norm of the QSM column elements in Quantum Object density ...
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Optimized 7-Tesla QSM reconstruction: Clinical feasibility

ISMRM Annual Meeting
Motivation: Quantitative Susceptibility Mapping (QSM) at 7-Tesla (7T) has been implicated to improve assessment of neurodegenerative disorders but has yet to be integrated into clinical practice. Goal(s): We aimed to address the growing demand for a standardized and optimized QSM reconstruction protocol that enables accurate quantification of ...
Felisha Ma, Pinar Ozbay, Priti Balchandani, Akbar Alipour   +3 more
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Maximum spherical mean value filtering for whole‐brain QSM

Magnetic Resonance in Medicine
AbstractPurposeTo develop a tissue field‐filtering algorithm, called maximum spherical mean value (mSMV), for reducing shadow artifacts in QSM of the brain without requiring brain‐tissue erosion.Theory and MethodsResidual background field is a major source of shadow artifacts in QSM.
Alexandra G. Roberts, Dominick J. Romano, Mert Şişman, Alexey V. Dimov, Thanh D. Nguyen, Ilhami Kovanlikaya, Susan A. Gauthier, Yi Wang, Pascal Spincemaille   +8 more
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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 -
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Free-running, Ferumoxytol-Enhanced Cardiac High-Dynamic-Range QSM (HDR-QSM) for Motion-resolved Myocardial Blood Volume Quantification

ISMRM Annual Meeting
Motivation: Myocardial Blood Volume (MBV) is an important factor in the progression of cardiac pathologies. Goal(s): We proposed to combine a motion-resolved cardiac high-dynamic-range quantitative susceptibility mapping (HDR-QSM) approach with ferumoxytol (an iron-based intravascular contrast agent) to accurately measure myocardial blood volume (MBV).
Yuheng Huang, Xingmin Guan, Xinheng Zhang, Archana Malagi, Chia-chi Yang, Li-Ting Huang, Xinqi Li, Ghazal Yoosefian, Anthony Christodoulou, Debiao Li, Hui Han, Rohan Dharmakumar, Hsin-Jung Yang   +12 more
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Rapid Neurological QSM measurement based on EPI sequence

ISMRM Annual Meeting
Quantitative susceptibility mapping(QSM) can be used for quantitatively measurement of neuro system magnetic susceptibility information caused by various diseases, such as Alzheimer's disease (AD), Parkinson's disease (PD) and neuro vascular diseases.
XueHua Peng, LiFei Ma, Rui Zhang, XiaoMeng Wu   +3 more
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QSM

Elderly Care, 1998
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QSM Processing Pipeline for Single-echo GRE Data

This repository contains the slurm-based QSM processing pipeline utilized to reconstruct susceptibility maps for the single-echo GRE data at the Buffalo Neuroimaging Analysis Center, University at Buffalo.
Salman, Fahad, Schweser, Ferdinand
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Studying psychiatric diseases using quantitative susceptibility mapping (QSM)

Quantitative Susceptibility Mapping (QSM), a sophisticated MRI-based technique for quantifying brain magnetic susceptibility, has emerged as a valuable tool in exploring neurodegenerative diseases and, more recently, psychiatric disorders such as first-episode schizophrenia, depression, anxiety, and stress.
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QSM-Texturmerkmale differenzieren effektiv Parkinson-Patienten

Neuroradiologie Scan, 2019
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