Results 241 to 250 of about 254,480 (307)

Spatiotemporal Progression Patterns of Striatal Dopamine Depletion and Cerebral Hypoperfusion in Parkinson's Disease

Movement Disorders, EarlyView.
Abstract Background The identification of Parkinson's disease (PD) subtypes is crucial for predicting the disease course and designing personalized therapeutic strategies. Objectives The aim of the study was to characterize the heterogeneity of the spatiotemporal evolutionary patterns of striatal dopamine depletion and cerebral hypoperfusion in PD ...
Yeeun Sun, Youngseok Choi, Chan Wook Park, Han Kyu Na, Hye Sun Lee, Yun Joong Kim, Young H. Sohn, Phil Hyu Lee, Jeyeon Lee, Seok Jong Chung   +9 more
wiley   +1 more source

Progression and influencing factors of knee osteoarthritis based on a multi-state Markov model: Data from OAI. [PDF]

Osteoarthr Cartil Open
Nuer A, Yang Y, Sun B, Wang Y, Xiao W, Wang L, Wang S, Lu W.   +7 more
europepmc   +1 more source

Extending the hyper‐logistic model to the random setting: New theoretical results with real‐world applications

Mathematical Methods in the Applied Sciences, EarlyView.
We develop a full randomization of the classical hyper‐logistic growth model by obtaining closed‐form expressions for relevant quantities of interest, such as the first probability density function of its solution, the time until a given fixed population is reached, and the population at the inflection point.
Juan Carlos Cortés, Ana Navarro‐Quiles, Sorina Madalina Sferle   +2 more
wiley   +1 more source

Cost-effectiveness of cervical cancer screening and HPV vaccination: a Markov model from the healthcare payer perspective. [PDF]

Front Public Health
Liu W, Jing L, Huang X, Huang H, Jiang KL, Lu W.   +5 more
europepmc   +1 more source

High Relative Accuracy Computations With Covariance Matrices of Order Statistics

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In many statistical applications, numerical computations with covariance matrices need to be performed. The error made when performing such numerical computations increases with the condition number of the covariance matrix, which is related to the number of variables and the strength of the correlation between the variables. In a recent work,
Juan Baz, Pedro Alonso, Juan Manuel Peña, Raúl Pérez‐Fernández   +3 more
wiley   +1 more source

The Future Dynamics of Long-Term Care Pressure in China's Longevity Era: A Prediction Based on the Discrete-Time Markov Model. [PDF]

Healthcare (Basel)
Feng R, Tan Y, Huang J.
europepmc   +1 more source

Advancing Quantitative Susceptibility Mapping With 2.5D Diffusion Models for Rapid Intracranial Hemorrhage Quantification

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a generative diffusion model‐based approach for robust and efficient quantitative susceptibility mapping (QSM) reconstruction in intracranial hemorrhage (ICH), applicable to both standard gradient echo (GRE) and rapid echo planar imaging (EPI) acquisitions.
Zhuang Xiong, Yang Gao, Feng Liu, Derek Emery, Ken Butcher, Alan H. Wilman, Hongfu Sun   +6 more
wiley   +1 more source

Consistent Eye Movement Patterns in Static and Dynamic Face Recognition: A Hidden Markov Model Study. [PDF]

Brain Sci
Bennetts RJ, Butcher N, Lander K.
europepmc   +1 more source

The Impact and Reliability of Tissue Segmentation on In Vivo Magnetic Resonance Spectroscopy Metabolite Quantification

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Quantification of metabolite concentrations using MRS requires tissue‐dependent signal corrections. Accurate estimation of voxel tissue composition is therefore essential. Commonly used brain tissue segmentation tools differ in their algorithms and implementation, potentially introducing variability in MRS‐derived concentration ...
Jessica Archibald, Kay Chioma Igwe, Antonia Kaiser, Karl Landheer, Jaimie Lee, John L. K. Kramer, Aaron T. Gudmundson, Helge J. Zöllner, Georg Oeltzschner, Candace C. Fleischer, Niklaus Zölch, Jamie Near, Mark Mikkelsen   +12 more
wiley   +1 more source

Cost-Effectiveness of 3D-Printed Patient-Specific Versus Off-the-Shelf Interbody Cages in Lumbar Spinal Fusion: A Markov Model Cost-Utility Analysis. [PDF]

J Mark Access Health Policy
Hill JC, Mobbs RJ, Coughlan M, Seex KA, Amaro CA, Walsh WR, Parr WCH.   +6 more
europepmc   +1 more source