Results 71 to 80 of about 1,179,474 (190)

Methods to Improve Fiber Reconstruction at DTI-Based Tractography in the Area of Brain Tumor: Case Illustration and Literature Review [PDF]

Iranian Journal of Neurosurgery, 2022
Background and Aim: Diffusion Tensor Imaging (DTI)-based tractography can help us visualize the spatial relation of fiber tracts to brain lesions. Several factors may interfere with the procedure of diffusion-based tractography, especially in brain ...
Seyed Amir Hossein Javadi, Seyed Morsal Mosallami Aghili, Amir Mohammad Javadi, Samira Raminfard   +3 more
doaj  

Functional Imaging for Identification of Functionally Critical Brain Regions to Spare in Glioma Radiation Therapy Planning: A Systematic Review

Journal of Medical Radiation Sciences, EarlyView.
This review highlights the role of functional imaging in sparing cognitive brain regions during glioma radiotherapy. It shows promising dose reduction without compromising target coverage, but evidence remains limited, requiring standardisation and prospective validation.
Li Wen Yeo, John T. Ryan
wiley   +1 more source

7 T MRI Connectivity‐Guided Reprogramming Improves Deep Brain Stimulation Motor Outcome in Parkinson's Disease

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is an established treatment for Parkinson's disease (PD). Using 7‐Tesla (7 T) MRI connectivity analysis to visualize the patient‐specific STN motor subdivision, we hypothesize that reprogramming patients who are stimulated outside of this subdivision can improve their ...
Yarit Wiggerts, Annabel van der Weide, Rick Schuurman, Pepijn van den Munckhof, Rob MA de Bie, Martijn Beudel, Maarten Bot   +6 more
wiley   +1 more source

Reliable identification of the auditory thalamus using multi-modal structural analyses. [PDF]

, 2006
The medial geniculate body (MGB) of the thalamus is a key component of the auditory system. It is involved in relaying and transforming auditory information to the cortex and in top-down modulation of processing in the midbrain, brainstem, and ear ...
Johansen-Berg, Heidi, Hall, D A, Nunes, R. G., Johansen-Berg, H, Devlin, JT, Clare, S., Behrens, T. E. J., Matthews, P. M., Nunes, RG, Johansen-Berg, H., Sillery, E L, Devlin, J. T., Moore, DR, Hobden, P., Matthews, PM, Behrens, TEJ, Clare, S, Matthews, P M, Hobden, P, Moore, D R, Nunes, R G, Hall, DA, Hall, D. A.; id_orcid, Devlin, J T, Sillery, E. L., Sillery, EL, Behrens, Timothy, Behrens, TE, Behrens, T E J, Moore, D. R.   +29 more
core   +1 more source

Staged Bilateral Magnetic Resonance‐Guided Focused Ultrasound for Treating Essential Tremor: Systematic Review and Meta‐Analysis

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Unilateral magnetic resonance guided focused ultrasound (MRgFUS) thalamotomy reduces tremor in essential tremor, yet disability often persists on the untreated side. The added benefit and safety of a staged contralateral lesion remain uncertain.
Nima Norbu Sherpa, Andrea Gonzalez Lezana, Gabriela Prilip, Kenji Fukutome, Nathan J. Pertsch, Ruth Reeve, Nadège Bault, Elsa Fouragnan   +7 more
wiley   +1 more source

MR diffusion tractography

, 2009
This chapter describes the underlying principles and most common techniques in diffusion tractography and covers deterministic streamline tractography and several different probabilistic approaches.
Saad Jbabdi, Jbabdi, S, Timothy E.J. Behrens, Behrens, TEJ, Jbabdi, Saad   +4 more
core   +1 more source

Main Paths of Brain Fibers in Diffusion Images Mixed with a Noise to Improve Performance of Tractography Algorithm-Evaluation in Phantom [PDF]

Journal of Biomedical Physics and Engineering
Background: Some voxels may alter the tractography results due to unintentional alteration of noises and other unwanted factors.Objective: This study aimed to investigate the effect of local phase features on tractography results providing data are mixed
Alireza Shirazinodeh, Hadis Faraji, Sam Sharifzadeh Javidi, Amir Homayoun Jafari, Mohammadreza Nazemzadeh, Hamidreza Saligheh Rad   +5 more
doaj   +1 more source

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

White matter integrity assessed by diffusion tensor tractography in a patient with a large tumour mass but minimal clinical and neuropsychological deficits [PDF]

, 2012
Diffusion tensor imaging (DTI) tractography and image registration were used to investigate a patient with a massive left-sided brain tumor, whose size was largely disproportionate to his subtle neurological deficits.
Cercignani, Mara, Tim Shallice (543157), Jeremy H Rees (16162640), Sarah E Macpherson (16162637), Mara Cercignani (4463104), Rees, Jeremy H, MacPherson, Sarah E., Shallice, Tim, Crum, William R, Macpherson, Sarah E, Crum, W.R., Rees, Jeremy H., Bozzali, Marco, Crum, William R., Rees, Jeremy R., Marco Bozzali (110753), MacPherson, Sarah E; id_orcid, William R Crum (16122203)   +17 more
core  

Principles of diffusion tensor imaging and its application to neuroscience

Анналы клинической и экспериментальной неврологии, 2017
This review article deals with technical issues of diffusionweighted imaging (DWI), diffusion tensor imaging (DTI) andmagnetic resonance tractography. We define such parameters ofDWI like: apparent diffusion coefficient, b-factor, fractionalanisotropy ...
S. V. Kitaev, T. A. Popova
doaj   +1 more source