Results 161 to 170 of about 32,647 (196)

Hemodynamic Modeling and Phase‐Adjustable Reconstruction of Hyperpolarized Cardiac 13C MRS Using 1H Cine and ECG Timing

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To deconvolve cardiac phase and hemodynamic effects in hyperpolarized (HP) [1‐13C]pyruvate and to develop a cardiac phase‐adjustable reconstruction framework. Methods Cardiac phase drift during dynamic acquisition of HP 13C MRS and its effect on dynamic signal fidelity were simulated using a digital cardiac phantom. A hemodynamic model
Sung‐Han Lin, Corey Mozingo, Crystal E. Harrison, Kelley A. Derner, Craig R. Malloy, Jae Mo Park   +5 more
wiley   +1 more source

Matrix-Free Inexact Preconditioning Techniques for Isogeometric Tensor-Product Discretizations. [PDF]

J Sci Comput
Mika MŁ, Hiemstra RR, Schillinger D.
europepmc   +1 more source

Transverse Relaxation Time Constant of Cystathionine in Human Glioma at 3 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Cystathionine (Cth) has emerged as a promising biomarker for identifying 1p/19q codeleted gliomas. However, little is known about the T2 relaxation time constant of Cth in gliomas. The aim of this study was to measure the T2 of Cth in vivo in glioma and compare it to the T2s of other metabolites at 3 T.
Dinesh K. Deelchand, Francesca Branzoli, Jamie D. Walls, Lucia Nichelli, Marc Sanson, Bertrand Mathon, Małgorzata Marjańska   +6 more
wiley   +1 more source

Isogeometric analysis of wing structures using multipatch parametrization and penalty-based coupling method. [PDF]

Sci Rep
Wang D, Cao X, Xue Y, Wang W, Du X.
europepmc   +1 more source

Toward Free‐Breathing Renal CEST MRI: Preclinical Evaluation of a Novel Prospective Respiratory Triggering Approach

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Endogenous renal chemical exchange saturation transfer (CEST) imaging enables contrast‐agent‐free assessment of renal metabolism but is highly sensitive to respiratory motion. Existing approaches, such as timed breathing, require high patient compliance or preclinical mechanical ventilation, limiting clinical translation.
Patrik Jan Gallinnis, Martin Duša, Julia Stabinska, Pavla Volešák Francová, Ruslan Garipov, Margarita Tkachenko, Karl Ludger Radke, Gerald Antoch, Alexandra Ljimani, Hans‐Jörg Wittsack, Luděk Šefc, Anja Müller‐Lutz, Vít Herynek   +12 more
wiley   +1 more source

Nonlinear dynamic analysis of shear- and torsion-free rods using isogeometric discretization and outlier removal. [PDF]

Comput Mech
Nguyen TH, Roccia BA, Hiemstra RR, Gebhardt CG, Schillinger D.   +4 more
europepmc   +1 more source

Nonlinear Vibration Characteristic Analysis of Electric Vehicle–Road Coupling System

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In‐wheel motor drive is the developing direction of automobile electrification and intelligence. However, the increased unsprung mass in in‐wheel motor‐driven electric vehicles (IWMEVs) leads to higher dynamic tire loads, thereby intensifying vehicle–road coupling interactions. To address this problem, an 11‐degree‐of‐freedom nonlinear dynamic
Guizhen Feng, Shaohua Li, Xuewei Wang
wiley   +1 more source

Numerical Computation and Analysis for Hydroelasticity of Ship with Forward Speed by Using Orthogonal Polynomials and Cubic B-spline Functions

Numerical Computation and Analysis for Hydroelasticity of Ship with Forward Speed by Using Orthogonal Polynomials and Cubic B-spline Functions
openaire  

Employing variance component estimation for point cloud based geometric surface representation by B-splines. [PDF]

J Appl Geod
Ötsch E, Harmening C, Neuner H.
europepmc   +1 more source

Semi-Parametric Item Response Theory With O'Sullivan Splines for Item Responses and Response Time. [PDF]

Appl Psychol Meas
Liu CW.
europepmc   +1 more source