Results 111 to 120 of about 33,176 (226)

Real‐World Evaluation of Bilateral Magnetic Resonance–Guided Focused Ultrasound Thalamotomy in Essential Tremor

Movement Disorders, EarlyView.
Abstract Background Magnetic resonance–guided focused ultrasound (MRgFUS) thalamotomy is effective in treating essential tremor (ET) with an adequate safety profile. Objective The aim of the study was to evaluate the real‐world safety and efficacy of staged bilateral MRgFUS thalamotomy in ET and its impact on patient's quality of life (QoL) and patient‐
Dolores Vilas, Antonio Gonzalez, Manel Tardáguila, Lourdes Ispierto, Mireia Gea, José Antonio Pérez, Raquel García, Ramiro Álvarez, Jorge Muñoz   +8 more
wiley   +1 more source

Cortical Cholinergic Pathway Degeneration Reflects Cognitive Impairment and Dementia in Parkinson's Disease

Movement Disorders, EarlyView.
Abstract Background Cognitive impairment is a prevalent and debilitating feature of Parkinson's disease (PD). Increasing evidence from postmortem and in vivo positron emission tomography imaging studies supports cholinergic dysfunction in PD. There is, however, little evidence regarding the influence of the structural integrity of cortical cholinergic ...
Nicola M. Slater, Daniel J. Myall, Reza Shoorangiz, Wassilios G. Meissner, Ian J. Kirk, Ross J. Keenan, Rebecca M. Lee, Kyla‐Louise Horne, Michael R. MacAskill, Campbell J. Le Heron, Toni L. Pitcher, Tim J. Anderson, Tracy R. Melzer, John C. Dalrymple‐Alford   +13 more
wiley   +1 more source

Modelfree global tractography

, 2020
© 2018 Elsevier Inc. Tractography based on diffusion-weighted MRI investigates the large scale arrangement of the neurite fibers in brain white matter.
Dhital B., Kellner E., Reisert M., Skibbe H., Kiselev V., Konopleva L., Il'yasov K.   +6 more
core  

The b‐Value Dependence for Higher‐Degree Spherical Harmonic Powers of the Diffusion MRI Signal Follows Stick Model Predictions in White Matter

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To compare the dependence on b‐value of the spherical harmonic powers for the diffusion MRI signal in white matter to theoretical predictions from the stick model of water diffusion within axons. Methods Diffusion MRI data were acquired at 3 T in three healthy adults with 10 b‐value shells (b = 1000–10 000 s/mm2) and 64 directions per ...
Hunter G. Moss, Jens H. Jensen, Andreana Benitez   +2 more
wiley   +1 more source

Tractography and immunohistochemistry.

, 2017
A: Tractography and immunohistochemistry at 9-wpa. B: Tractography and immunohistochemistry at 10-wpa. The regenerating right upper arms were amputated and embedded for sectioning soon after image acquisition.
Wen-Yih Isaac Tseng (386071), Cheng-Han Wu (691639), Ling-Ling Chiou (551380), Mu-Hui Wang (3808849), Yu-Jen Chen (323231), Hsuan-Shu Lee (551382)   +5 more
core   +1 more source

Retinal neurovascular alterations are associated with optic radiation microstructure in adrenomyeloneuropathy: A susceptibility separation MRI study

VIEW, EarlyView.
In a cross‐sectional cohort of 104 participants, 7 T susceptibility separation MRI and diffusion imaging were combined with retinal imaging and visual evoked potentials to characterize visual pathway involvement in adrenomyeloneuropathy (AMN). Absolute diamagnetic susceptibility, a myelin‐associated measure, and fractional anisotropy (FA) showed ...
Ronghao Li, Jun Li, Chongyi Li, Xingang Wang, Wenyu Zhou, Yangcheng Zou, Zhiming Zhen, Li Xiao, Na Liang, Zongxing Zou, Junru Yang, Hui Yang, Chunhua Fu, Weiqi Chen, Yuyu Chen, Chen Liu, Hongjiang Wei, Liang Tan   +17 more
wiley   +1 more source

A Web-Based Probabilistic Tractography Database [PDF]

, 2009
Diffusion tensor imaging (DTI) and probabilistic tractography allow inferences to be made about connectivity in the brain. Tractography results are useful to a range of communities, from those working in MR, through biologists, psychologists and ...
Logothetis, N., Haroon, H., Embleton, K., Parker, G., Rose, C., Morris, E., Lambon Ralph, M., Ellard, D.   +7 more
core  

Real‐Time Rendering of Dynamic Line Sets using Voxel Ray Tracing

Computer Graphics Forum, EarlyView.
Abstract Real‐time rendering of dynamic line sets is relevant in many visualization tasks, including unsteady flow visualization and interactive white matter reconstruction from Magnetic Resonance Imaging. High‐quality global illumination and transparency are important for conveying the spatial structure of dense line sets, yet remain difficult to ...
B. Kraaijeveld, A.C. Jalba, A. Vilanova, M. Chamberland   +3 more
wiley   +1 more source

The DTI Challenge: Toward Standardized Evaluation of Diffusion Tensor Imaging Tractography for Neurosurgery: The DTI Challenge on Tractography for Neurosurgery [PDF]

, 2015
Diffusion tensor imaging tractography reconstruction of white matter pathways can help guide brain tumor resection. However, DTI tracts are complex mathematical objects and the validity of tractography-derived information in clinical settings has yet to ...
Brun, Caroline, Pujol, Sonia, Kikinis, Ron, Mamata, Hatsuho, Whitaker, Ross, Gerig, Guido, Gee, James, Stamm, Aymeric, Tristan-Vega, Antonio, Nabavi, Arya, Cheng, Guang, Khan, Ali, Veni, Gopalkrishna, Vemuri, Baba, Neher, Peter, Westin, Carl-Fredrik, Norton, Isaiah, Pierpaoli, Carlo, Maier-Hein, Klaus H., Chauvin, Laurent, Prima, Sylvain, Peters, Terry, Shi, Yundi, Golby, Alexandra, Styner, Martin, Commowick, Olivier, Gouttard, Sylvain, Wells, William, Goubran, Maged   +28 more
core   +1 more source

Tubes or Ribbons? Comparing Texture‐space Visualization for Multivariate Line Data

Computer Graphics Forum, EarlyView.
Abstract Multivariate line data is critical for analyzing flow fields, agent systems, and dynamic trajectories. Embedding secondary variables along spatial paths using surface‐based primitives such as ribbons and circular tubes introduces challenges related to perspective, scale, and distortion.
B. Russig, R. Rzayev, R. Dachselt, S. Gumhold   +3 more
wiley   +1 more source