Results 31 to 40 of about 299,453 (315)

Microstructural parameter estimation in vivo using diffusion MRI and structured prior information. [PDF]

, 2016
Diffusion MRI has recently been used with detailed models to probe tissue microstructure. Much of this work has been performed ex vivo with powerful scanner hardware, to gain sensitivity to parameters such as axon radius.
Aboitiz, Alexander, Alexander, Andersson, Assaf, Assaf, Barazany, Basser, Callaghan, Clayden, Clayden, Drobnjak, Dyrby, Eddelbuettel, Eddelbuettel, Feinberg, Gelderen, Hall, Huang, Ianuş, Koch, Lawrenz, Le Bihan, Li, McNab, Neuman, Nilsson, Nilsson, Price, R Core Team. R, Reese, Roberts, Setsompop, Shemesh, Shemesh, Siow, Siow, Stanisz, Stejskal, Swain, Szafer, Xu, Zhang, Zhang   +43 more
core   +1 more source

Optimization of diffusion imaging for multiple target regions using maximum likelihood estimation

Current Directions in Biomedical Engineering, 2017
In this work a procedure is proposed to determine an optimal distribution of b-values in diffusion MRI measu-rements. The optimization procedure uses a method of Maximum Likelihood Estimation which can operate on any given number of b-values, values of ...
Bielak Lars, Bock Michael
doaj   +1 more source

Evaluating fibre orientation dispersion in white matter: Comparison of diffusion MRI, histology and polarized light imaging

NeuroImage, 2017
Diffusion MRI is an exquisitely sensitive probe of tissue microstructure, and is currently the only non-invasive measure of the brain's fibre architecture.
Jeroen Mollink, Michiel Kleinnijenhuis, Anne-Marie van Cappellen van Walsum, Stamatios N. Sotiropoulos, Michiel Cottaar, Christopher Mirfin, Mattias P. Heinrich, Mark Jenkinson, Menuka Pallebage-Gamarallage, Olaf Ansorge, Saad Jbabdi, Karla L. Miller   +11 more
doaj   +1 more source

What’s the clinical significance of adding diffusion and perfusion MRI in the differentiation of glioblastoma multiforme and solitary brain metastasis?

The Egyptian Journal of Radiology and Nuclear Medicine, 2017
Objective: To evaluate the additional diagnostic value of diffusion and perfusion MRI in the differentiation of glioblastoma multiforme (GBM) and solitary brain metastasis.
Amr F. Mourad, Hosam El-din G. Mohammad, Mona M. Sayed, Mohamed A. Ragae   +3 more
doaj   +1 more source

Variability of non-Gaussian diffusion MRI and intravoxel incoherent motion (IVIM) measurements in the breast. [PDF]

PLoS ONE, 2018
We prospectively examined the variability of non-Gaussian diffusion magnetic resonance imaging (MRI) and intravoxel incoherent motion (IVIM) measurements with different numbers of b-values and excitations in normal breast tissue and breast lesions ...
Mami Iima, Masako Kataoka, Shotaro Kanao, Makiko Kawai, Natsuko Onishi, Sho Koyasu, Katsutoshi Murata, Akane Ohashi, Rena Sakaguchi, Kaori Togashi   +9 more
doaj   +1 more source

The Role of Diffusion-Weighted MRI and Apparent Diffusion Coefficient in Assessment of Diabetic Kidney Disease: Preliminary Experience Study

International Journal of Nephrology and Renovascular Disease, 2021
Nasr Mohamed Mohamed Osman,1 Moustafa Abdel Kader,1 Taghreed A EL Aziz Nasr,1 Mohamed Ahmed Sharawy,2 Hesham Kamal Habeeb Keryakos2 1Radiology Department, Faculty of Medicine, Minia University, El Minia, Egypt; 2Internal Medicine Department, Faculty of ...
Mohamed Osman NM, Abdel Kader M, Aziz Nasr TAEL, Sharawy MA, Keryakos HKH   +4 more
doaj  

Analysis of the magneto-rotational instability with the effect of cosmic-ray diffusion

, 2014
We present the results obtained from linear stability analysis and 2.5-dimensional magnetohydrodynamic (MHD) simulations of the magnetorotational instability (MRI), including the effects of cosmic rays (CRs).
Ko, Chung-Ming, Kuwabara, Takuhito
core   +1 more source

Simultaneous in vivo positron emission tomography and magnetic resonance imaging [PDF]

, 2008
Positron emission tomography (PET) and magnetic resonance imaging (MRI) are widely used in vivo imaging technologies with both clinical and biomedical research applications.
Catana, Ciprian, Cherry, Simon R., Jacobs, Russell E., Judenhofer, Martin S., Pichler, Bernd J., Procissi, Daniel, Qi, Jinyi, Wu, Yibao   +7 more
core   +2 more sources

Multidimensional diffusion MRI

Journal of Magnetic Resonance, 2017
Principles from multidimensional NMR spectroscopy, and in particular solid-state NMR, have recently been transferred to the field of diffusion MRI, offering non-invasive characterization of heterogeneous anisotropic materials, such as the human brain, at an unprecedented level of detail.
openaire   +2 more sources

Generating Diffusion MRI scalar maps from T1 weighted images using generative adversarial networks

, 2019
Diffusion magnetic resonance imaging (diffusion MRI) is a non-invasive microstructure assessment technique. Scalar measures, such as FA (fractional anisotropy) and MD (mean diffusivity), quantifying micro-structural tissue properties can be obtained ...
DC Essen Van, Dong Nie, E Özarslan, H Emami, Jelmer M. Wolterink, MF Glasser, Sahin Olut, Z Wang   +7 more
core   +1 more source