Results 111 to 120 of about 26,892 (218)

Uncertainty Quantification for Cardiac Diffusion Tensor Imaging Without Additional Datasets

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Cardiac diffusion tensor imaging (cDTI) is subject to physiological noise, thermal noise, and signal corruption, which cause errors in diffusion measures. While a larger dataset can be decimated to investigate the general precision of measures from fitting smaller datasets, uncertainty quantification (UQ) methods for fitting entire ...
Sam Coveney, Irvin Teh, May Lwin, Mehak Asad, Isaac Watson, Maryam Afzali, Erica Dall'Armellina, Jürgen E. Schneider   +7 more
wiley   +1 more source

The Spectral Rrepresentation of a Discrete Version of Blackwell's Markov Chain. [PDF]

Entropy (Basel)
Nieznaj E.
europepmc   +1 more source

Four Directions, One Solution: Enabling Rapid Diffusion Tensor MRI for Ultra‐Low Field Using Deep Learning

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study revisits the tetrahedral encoding strategy originally proposed to accelerate Diffusion Tensor Magnetic Resonance Imaging (DT‐MRI) by reducing the requisite number of diffusion‐weighted measurements to four. We examine its practical limitations and explore how artificial intelligence (AI) can extend its utility. Specifically,
Joshua Mawuli Ametepe, James Gholam, Leandro Beltrachini, Mara Cercignani, Derek Kenton Jones   +4 more
wiley   +1 more source

Shared but distinct functional connectome profiles underlying rumination in depressed and healthy individuals. [PDF]

BMC Psychiatry
Chen X, Jia FN, Liu FY, Liu YS, Liu X, Yan CG.   +5 more
europepmc   +1 more source

Fully‐Constrained Variable Projection for Water‐Fat Models

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Variable projection (VARPRO) is an effective technique to reduce the dimensionality of least squares optimization problems through the elimination of linear parameters. For water‐fat models, constrained VARPRO variants have been proposed in the literature to ensure that water and fat components are aligned at TE = 0, thereby preventing
Carl Ganter, Jonathan Stelter, Louis Peyratoux, Dimitrios C. Karampinos, Oliver Bieri   +4 more
wiley   +1 more source

Functional network organization is locally atypical in children, adolescents, and young adults with congenital heart disease. [PDF]

Neuroimage Clin
Roy J, Reynolds W, Wallace J, Badaly D, Ceschin R.   +4 more
europepmc   +1 more source

Laterally Oscillating Trajectory for Undersampling Slices: LOTUS

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose While spiral sampling offers SNR advantages for diffusion MRI, its acceleration with simultaneous multislice remains relatively unexplored. This study introduces Laterally Oscillating Trajectory for Undersampling Slices (LOTUS), which is a 3D spiral‐like k‐space trajectory that aims to minimize g‐factor via controlled incoherent ...
Mayuri Sothynathan, Paul I. Dubovan, Corey A. Baron   +2 more
wiley   +1 more source

Alteration of functional connectivity and network properties after stereo-electroencephalography guided radiofrequency thermocoagulation. [PDF]

Chin Neurosurg J
Shen D, Zhou L, Liao N, Yu S, Chen X, Shu H.   +5 more
europepmc   +1 more source

Robust Linearization and Eigenvalue Analysis of General Complex Constrained Multibody Systems

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The derivation of linearized equations and subsequent eigenvalue analysis is the basis for tasks such as frequency‐domain response analysis, control design, and stability assessment for mechanical systems. However, for general multibody systems with redundant or nonholonomic constraints, practical challenges persist in achieving numerically ...
Zhiwen Xiao, Gexue Ren
wiley   +1 more source

Anharmonic effects on the dynamical stability of Ce-Co-Cu intermetallic ternary compounds. [PDF]

RSC Adv
Tee WS, Xia W, Flint R, Wang CZ.
europepmc   +1 more source