Results 81 to 90 of about 2,779 (160)

Nonlinear Dipole Inversion (NDI) enables Quantitative Susceptibility Mapping (QSM) without parameter tuning

CoRR, 2019
We propose Nonlinear Dipole Inversion (NDI) for high-quality Quantitative Susceptibility Mapping (QSM) without regularization tuning, while matching the image quality of state-of-the-art reconstruction techniques. In addition to avoiding over-smoothing that these techniques often suffer from, we also obviate the need for parameter selection.
Daniel Polak, Itthi Chatnuntawech, Jaeyeon Yoon, Siddharth Srinivasan Iyer, Jongho Lee 0003, Peter Bachert, Elfar Adalsteinsson, Kawin Setsompop, Berkin Bilgic   +8 more
openaire   +2 more sources

Reliability of paramagnetic rim lesion classification on quantitative susceptibility mapping (QSM) in people with multiple sclerosis: Single-site experience and systematic review. [PDF]

Mult Scler Relat Disord, 2023
Reeves JA, Mohebbi M, Zivadinov R, Bergsland N, Dwyer MG, Salman F, Schweser F, Jakimovski D.   +7 more
europepmc   +1 more source

Improving quantitative susceptibility mapping for the identification of traumatic brain injury neurodegeneration at the individual level

Zeitschrift für Medizinische Physik
Background: Emerging evidence suggests that traumatic brain injury (TBI) is a major risk factor for developing neurodegenerative disease later in life.
Juan F Domínguez D, Ashley Stewart, Alex Burmester, Hamed Akhlaghi, Kieran O'Brien, Steffen Bollmann, Karen Caeyenberghs   +6 more
doaj   +1 more source

The diamagnetic component map from quantitative susceptibility mapping (QSM) source separation reveals pathological alteration in Alzheimer's disease-driven neurodegeneration. [PDF]

Neuroimage, 2023
Ahmed M, Chen J, Arani A, Senjem ML, Cogswell PM, Jack CR, Liu C.   +6 more
europepmc   +1 more source

Multiple sclerosis lesion geometry in quantitative susceptibility mapping (QSM) and phase imaging. [PDF]

Journal of magnetic resonance imaging : JMRI, 2015
To demonstrate the phase and quantitative susceptibility mapping (QSM) patterns created by solid and shell spatial distributions of magnetic susceptibility in multiple sclerosis (MS) lesions.Numerical simulations and experimental phantoms of solid- and shell-shaped magnetic susceptibility sources were used to generate magnitude, phase, and QSM images ...
Eskreis-Winkler, Sarah, Deh, Kofi, Gupta, Ajay, Liu, Tian, Wisnieff, Cynthia, Jin, Moonsoo, Gauthier, Susan, Wang, Yi, Spincemaille, Pascal   +8 more
openaire   +1 more source

Quantitative susceptibility mapping as an early neuroimaging biomarker for amyotrophic lateral sclerosis: A review

iRADIOLOGY
Quantitative susceptibility mapping (QSM) is an advanced post‐processing technique in magnetic resonance imaging that offers precise measurements of tissue magnetic susceptibility with impressive spatial resolution and sensitivity.
Sana Mohammadi, Sadegh Ghaderi, Farzad Fatehi   +2 more
doaj   +1 more source

Free-breathing high isotropic resolution quantitative susceptibility mapping (QSM) of liver using 3D multi-echo UTE cones acquisition and respiratory motion-resolved image reconstruction. [PDF]

Magn Reson Med, 2023
Kang M, Behr GG, Jafari R, Gambarin M, Otazo R, Kee Y.   +5 more
europepmc   +1 more source

Hemosiderin quantification in hemophilic arthropathy using quantitative magnetic resonance imaging

Scientific Reports
The goal of this study is to quantify hemosiderin deposition in the knee joint tissues of hemophilic arthropathy (HA) patients using quantitative susceptibility mapping on MRI.
Sam Sedaghat, Jame V. Luck, Annette von Drygalski, Eddie Fu, Jin Il Park, Kim Gina Gehling, Yajun Ma, Scott Ball, Eric Y. Chang, Jiang Du, Hyungseok Jang   +10 more
doaj   +1 more source

SIPAS: A comprehensive susceptibility imaging process and analysis studio

NeuroImage
Quantitative susceptibility mapping (QSM) is a rising MRI-based technology and quite a few QSM-related algorithms have been proposed to reconstruct maps of tissue susceptibility distribution from phase images.
Lichu Qiu, Zijun Zhao, Lijun Bao
doaj   +1 more source

Midbrain and pallidal iron changes identify patients with REM sleep behaviour disorder and Parkinson’s disease

npj Parkinson's Disease
Idiopathic REM sleep behaviour disorder (iRBD) is considered a prodromal form of Parkinson’s Disease (PD), potentially exhibiting similar patterns of neurodegeneration, such as brain iron changes.
Erind Alushaj, Alan Kuurstra, Ravi S. Menon, Hooman Ganjavi, Anisa Morava, Manas Sharma, Alia Kashgari, Jennifer Barr, William Reisman, Ali R. Khan, Penny A. MacDonald   +10 more
doaj   +1 more source