Results 101 to 110 of about 4,607 (203)

ISME—incoherent sampling of multi‐echo data to minimize cardiac‐induced noise in brain maps of R2*$$ {R}_2^{\ast } $$ and magnetic susceptibility

Magnetic Resonance in Medicine, Volume 95, Issue 2, Page 897-911, February 2026.
Abstract Purpose Maps of the MRI parameters R2*$$ {\mathrm{R}}_2^{\ast } $$ and magnetic susceptibility (χ$$ \chi $$) enable the investigation of microscopic tissue changes in brain disease. However, cardiac‐induced signal instabilities increase the variability of brain maps of R2*$$ {\mathrm{R}}_2^{\ast } $$ and χ$$ \chi $$.
Quentin Raynaud, Rita Oliveira, Nadège Corbin, Yaël Balbastre, Ruud B. van Heeswijk, Antoine Lutti   +5 more
wiley   +1 more source

Learning-based Single-step Quantitative Susceptibility Mapping Reconstruction Without Brain Extraction

, 2019
Quantitative susceptibility mapping (QSM) estimates the underlying tissue magnetic susceptibility from MRI gradient-echo phase signal and typically requires several processing steps.
Cao, Steven, Guan, Xiaojun, Liu, Chunlei, Wei, Hongjiang, Yan, Fuhua, Yeom, Kristen W., Zhang, Yuyao   +6 more
core  

Noninvasive imaging of amyloid‐beta and tau in rodent and nonhuman primate models

VIEW, Volume 7, Issue 1, February 2026.
Imaging of amyloid‐beta plaque and tau accumulation in rodent and nonhuman primate model of Alzheimer's disease. Created in BioRender. Ni R. 2026. https://BioRender.com/a97h5ec Abstract Neurodegenerative diseases are characterized by the aberrant accumulation of protein aggregates.
Ruiqing Ni, Axel Rominger
wiley   +1 more source

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

, 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.
Polak, Daniel, Chatnuntawech, Itthi, Yoon, Jaeyeon, Iyer, Siddharth Srinivasan, Lee, Jongho, Bachert, Peter, Adalsteinsson, Elfar, Setsompop, Kawin, Bilgic, Berkin   +8 more
openaire   +2 more sources

Relationship between tau-PET and quantitative susceptibility mapping in atypical Alzheimer’s disease

Frontiers in Aging Neuroscience
BackgroundIron is an important component in neurofibrillary tangles, is known to co-localize with tangles in Alzheimer’s disease (AD) and can be measured using quantitative susceptibility mapping (QSM).
Neha Singh-Reilly, Ryota Satoh, Jonathan Graff-Radford, Mary M. Machulda, Val J. Lowe, Keith A. Josephs, Jennifer L. Whitwell   +6 more
doaj   +1 more source

Ultrashort Echo Time Quantitative Susceptibility Mapping (UTE-QSM) of Highly Concentrated Magnetic Nanoparticles: A Comparison Study about Different Sampling Strategies

Molecules, 2019
The ability to accurately and non-invasively quantify highly concentrated magnetic nanoparticles (MNPs) is desirable for many emerging applications. Ultrashort echo time quantitative susceptibility mapping (UTE-QSM) has demonstrated the capability to ...
Xing Lu, Hyungseok Jang, Yajun Ma, Saeed Jerban, Eric Y. Chang, Jiang Du   +5 more
doaj   +1 more source

Quantitative susceptibility and T1ρ mapping of knee articular cartilage at 3T

Osteoarthritis and Cartilage Open
T1ρ and Quantitative Susceptibility Mapping (QSM) are evolving as substrates for quantifying the progressive nature of knee osteoarthritis. Objective: To evaluate the effects of spin lock time combinations on depth-dependent T1ρ estimation, in adjunct to
Allen A. Champagne, Taylor M. Zuleger, Daniel R. Smith, Alexis B. Slutsky-Ganesh, Shayla M. Warren, Mario E. Ramirez, Lexie M. Sengkhammee, Sagar Mandava, Hongjiang Wei, Davide D. Bardana, Joseph D. Lamplot, Gregory D. Myer, Jed A. Diekfuss   +12 more
doaj   +1 more source

Application of Laplacian-based Methods to Multi-echo Phase Data for Accurate Susceptibility Mapping [PDF]

, 2016
In Susceptibility Mapping (SM) using multi-echo gradient-echo phase data, unwrapping and/or background-Òeld removal is often performed using Laplacian-based methods.
Biondetti, E, Shmueli, K, Thomas, DL
core  

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