Results 81 to 90 of about 2,847,330 (149)

Autorregresive conditional volatility, skewness and kurtosis [PDF]

This paper proposes a GARCH-type model allowing for time-varying volatility, skewness and kurtosis. The model is estimated assuming a Gram-Charlier series expansion of the normal density function for the error term, which is easier to estimate than the ...
León, Angel, Serna, Gregorio, Rubio Irigoyen, Gonzalo   +2 more
core  

High-Resolution Diffusion Kurtosis Imaging of Hippocampus Subfields Across the Healthy Lifespan. [PDF]

NMR Biomed
Stack-Sanchez P, Gross DW, Khan AR, Beaulieu C.   +3 more
europepmc   +1 more source

Non-rigid coregistration of diffusion kurtosis data

, 2010
: Diffusion kurtosis imaging (DKI) is a relatively new model to study the non-Gaussian behavior of water diffusion in the brain white matter which introduces, besides the conventional diffusion tensor, a 4th order, 3D diffusion kurtosis tensor to ...
Van Der Linden, Anne-Marie, van Hecke, Wim, Verhoye, Marleen, Blockx, Ines, Veraart, Jelle, Sijbers, Jan   +5 more
core  

Altered microstructure in end-stage renal disease patients with maintenance hemodialysis: A diffusion kurtosis imaging analysis. [PDF]

Medicine (Baltimore)
Cheng J, Yang J, Jia X, Yang Q.
europepmc   +1 more source

Effect of diffusion time on diffusion kurtosis in neural tissues

, 2010
As diffusion-weighted (DW) signal attenuation not only depends on diffusion gradient strength but also the time separation between the 2 diffusion gradients (Δ), it is important to examine the effect of Δ on the kurtosis of the water displacement profile
Fung, SH, Hui, ES, Wu, EX
core  

Joint Reconstruction of Multiple b-Values and Multiple Directions for Accelerating Diffusion Kurtosis Imaging. [PDF]

Magn Reson Med
Lyu J, Guo L, Zhong W, Xu Z, Zhao H, Gao M, Xu Z, Chen Z, Guo H.   +8 more
europepmc   +1 more source

Restriction spectrum imaging and diffusion kurtosis imaging for evaluating proliferation status in cervical cancer. [PDF]

Front Med (Lausanne)
Liu W, Yin H, Wang B, Li Z, Liu W, Zhang M, Ren J, Yan R, Han D.   +8 more
europepmc   +1 more source

Diagnostic value of diffusion kurtosis imaging for brain injury in term neonates with hypoxic-ischemic encephalopathy. [PDF]

Front Neurosci
Wang X, Liu X, Zhang P, Xu W, Xing Q, Cheng M, Xu X, Yang X, Zhang X, Zhao X.   +9 more
europepmc   +1 more source

Genome-wide association studies of brain diffusion kurtosis imaging phenotypes. [PDF]

EBioMedicine
Fu J, Wang J, Xue H, Wang M, Zhang B, Zhu W, Qiu S, Geng Z, Cui G, Zhang Q, Yu Y, Liao W, Gao B, Xu X, Han T, Yao Z, Li MJ, Liu F, Liang M, Wang S, Xu Q, Xu J, Zhang P, Li W, Shi D, Wang C, Lui S, Yan Z, Chen F, Zhang J, Li J, Shen W, Miao Y, Wang D, Xian J, Gao JH, Zhang X, Xu K, Zuo XN, Zhang L, Ye Z, Cheng J, Qin W, Zhang H, Yu C, CHIMGEN Consortium.   +45 more
europepmc   +1 more source

Microstructural alterations in brain tissue of ME/CFS and long COVID using diffusion tensor imaging and diffusion kurtosis imaging. [PDF]

Front Med (Lausanne)
Singh TB, Marshall-Gradisnik S, Barnden L, Eaton-Fitch N, Huynh TH, Inderyas M, Thapaliya K.   +6 more
europepmc   +1 more source