Results 121 to 130 of about 16,306 (215)

Spatial Image Gradient Estimation From the Diffusion MRI Profile

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2980-2991, May 2026.
ABSTRACT Purpose In the course of diffusion, water molecules encounter varying values for the relaxation‐time properties of the underlying tissue. This factor, which has rarely been accounted for in diffusion MRI (dMRI), is modeled in this work, allowing for the estimation of the gradient of relaxation‐time properties from the dMRI signal. Methods With
Iman Aganj, Thorsten Feiweier, John E. Kirsch, Bruce R. Fischl, Andre J. van der Kouwe   +4 more
wiley   +1 more source

Monte Carlo Assessment of Accuracy for Mean Kärger Model Water Exchange Rate Estimates From Diffusional Kurtosis Time Dependence

NMR in Biomedicine, Volume 39, Issue 5, May 2026.
Monte Carlo simulations for water diffusing through a packing of parallel, randomly placed, permeable cylinders are used to assess the accuracy of a new diffusion MRI method for estimating the mean water exchange rate in brain. The exchange rate estimate is derived from the logarithmic derivative of the diffusional kurtosis with respect to the ...
Jens H. Jensen, Ricardo Coronado‐Leija, Els Fieremans   +2 more
wiley   +1 more source

Collision statistics of driven granular materials

, 2002
We present an experimental investigation of the statistical properties of spherical granular particles on an inclined plane that are excited by an oscillating side-wall. The data is obtained by high-speed imaging and particle tracking techniques.
A. Baldassarri, A. Baldassarri, A. Barrat, A. Kudrolli, A. Kudrolli, A. Kudrolli, A. Puglisi, A. Puglisi, B.J. Alder, D. Henderson, D.L. Blair, Daniel L. Blair, E. Khain, E. Livne, E.L. Grossman, F. Rouyer, H.M. Jaeger, I. Goldhirsch, I. Pagonabarraga, J.J. Brey, J.Javier Brey, J.S. Olafsen, J.S. Olafsen, J.T. Jenkins, L. Kondic, L.P. Kadanoff, M. Argentina, P.K. Haff, R.D. Wildman, S. Luding, S. McNamara, S. McNamara, S. Warr, S. Warr, S. Warr, S.J. Moon, T.P.C. van Noije, T.P.C. van Noije, W. Losert   +38 more
core   +1 more source

Diffusion Kurtosis and Diffusion-Tensor MR Imaging in Parkinson Disease [PDF]

Radiology, 2012
Giannelli M, Toschi N, Passamonti L, MASCALCHI, MARIO, DICIOTTI, STEFANO, TESSA, CARLO   +5 more
openaire   +8 more sources

Using neurite orientation dispersion and density imaging and tracts constrained by underlying anatomy to differentiate between subjects along the Alzheimer's disease continuum [PDF]

, 2019
OBJECTIVE: To assess the involvement of the white matter of the brain in the pathology of Alzheimer’s disease. Using Neurite Orientation Density and Dispersion Imaging (NODDI) and the probabilistic white matter parcellation tool Tracula as a means for ...
Zhang, Zannan
core  

Characterizing microstructural alterations in a ratmodel of mild traumatic brain injury [PDF]

, 2016
1. INTRODUCTION Traumatic brain injury (TBI) is an acquired brain injury that contributes to a substantial number of deaths (mortality rate: 15 per 100 000 in Europe) and a high number of cases of permanent disability (incidence rate: 235 per 100 000 in ...
Braeckman, Kim, Caeyenberghs, Karen, Deblaere, Karel, Descamps, Benedicte, Vanhove, Christian   +4 more
core   +1 more source

Research on Diffusion Kurtosis Imaging of the Brain Based on Deep Learning

IEEE Access
Precise evaluation of the deviation of water molecule diffusion in the brain tissue from the Gaussian diffusion model is crucial for diagnosing brain disorders. Diffusion kurtosis imaging (DKI) is a technique that may accurately describe the non-Gaussian
Rui Chen, Jingwen Yue, Rong Li, Zijian Jia   +3 more
doaj   +1 more source

Diffusion kurtosis imaging

, 2014
Struyfs, H, Van Hecke, W., Slaets, S., Van der Mussele, S., De Belder, M., Wuyts, L., Peters, B., De Belder, F., Parizel, P., Engelborghs, Sebastiaan   +9 more
openaire   +3 more sources

Amide Proton Transfer Imaging vs Diffusion Kurtosis Imaging for Predicting Histological Grade of Hepatocellular Carcinoma

Journal of Hepatocellular Carcinoma, 2020
Baolin Wu,1,* Fei Jia,2,* Xuekun Li,2 Meng Zhang,2 Dongming Han,2 Zhiyun Jia1,3 1Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, Department of Radiology, West China Hospital of Sichuan University ...
Wu B, Jia F, Li X, Zhang M, Han D, Jia Z
doaj  

Diffusion Kurtosis Imaging in Temporal Lobe Epilepsy

, 2021
Epilepsy constitutes one of the most common neurological clinicopathological entities affecting approximately 1% of the general population. Temporal lobe epilepsy (TLE) represents by far the most common form of medically intractable focal epilepsy in adults.
openaire   +1 more source