Results 71 to 80 of about 3,158,026 (291)

Diffusion Tensor Imaging [PDF]

Current Protocols in Magnetic Resonance Imaging, 2003
AbstractThis unit provides step‐by‐step instructions on how to perform diffusion tensor imaging (DTI) in a clinical setting. A brief introduction on DTI techniques and current clinical applications is also presented. Additional technical details, practical considerations, and anticipated results are discussed in a commentary section.
Zhou, Xiaohong Joe, Thulborn, Keith R.
openaire   +2 more sources

Posterior Disconnection Syndrome in Early‐Stage Adult‐Onset Cerebral Adrenoleukodystrophy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Adult‐onset cerebral adrenoleukodystrophy is potentially treatable but often difficult to recognize before advanced cerebral involvement. Herein, we describe three men with early‐stage disease who initially presented with subtle visual complaints rather than subcortical dementia. Targeted neuropsychological testing revealed higher‐order visual
Kazuto Katsuse, Takashi Matsukawa, Yumiko Nakamura, Kazuo Kakinuma, Shoko Ota, Ryo Hara, Saki Nakashima, Kaoru Ito, Yutaro Nakamori, Toshiyuki Kakumoto, Masashi Hamada, Shigenori Kanno, Kyoko Suzuki, Tatsushi Toda   +13 more
wiley   +1 more source

Different patterns of white matter degeneration using multiple diffusion indices and volumetric data in mild cognitive impairment and Alzheimer patients [PDF]

, 2012
Alzheimeŕs disease (AD) represents the most prevalent neurodegenerative disorder that causes cognitive decline in old age. In its early stages, AD is associated with microstructural abnormalities in white matter (WM).
Alves, Gilberto Sousa, Gilberto Sousa Alves, Felipe Sudo, Tarik Karakaya, Letice Valente, Laurence O’Dwyer, Viola Oertel-Knöchel, Engelhardt, Eliasz, David Prvulovic, Denise Moreira, Christian Knöchel, O’Dwyer, Laurence, Karakaya, Tarik, Fabian Fuβer, Carlos Eduardo Alves, Fußer, Fabian, Johannes Pantel, Laurence O'Dwyer, Valente, Letice, Jerson Laks, Prvulovic, David, Moreira, Denise, Alves, Carlos Eduardo, Alina Jurcoane, Pantel, Johannes, Oertel-Knöchel, Viola, Laks, Jerson, Eliasz Engelhardt, Sudo, Felipe, Fabian Fußer, Jurcoane, Alina, Knöchel, Christian, Alves Gilberto Sousa, Alves Carlos Eduardo, Prvulovic David, Sudo Felipe, Karakaya Tarik, Fuβer Fabian, Oertel-Knöchel Viola, O’Dwyer Laurence, Valente Letice, Moreira Denise, Knöchel Christian, Laks Jerson, Pantel Johannes, Engelhardt Eliasz, Jurcoane Alina   +46 more
core   +2 more sources

White Matter and Perivascular Imaging Changes in Alzheimer's Disease and Cerebral Amyloid Angiopathy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Peak‐width of skeletonized mean diffusivity (PSMD) and diffusion tensor imaging–analysis along the perivascular space (DTI‐ALPS), reflecting white matter integrity and glymphatic function, are altered in Alzheimer's disease (AD).
Debina Laishram, Guangwei Du, Sangam Kanekar, Nandakumar Nagaraja   +3 more
wiley   +1 more source

A method for improving the performance of gradient systems for diffusion-weighted MRI [PDF]

, 2007
The MR signal is sensitive to diffusion. This effect can be increased by the use of large, balanced bipolar gradients. The gradient systems of MR scanners are calibrated at installation and during regular servicing visits.
Daniel C. Alex, Zoltan Nagy, Ralf Deichmann, Weiskopf, N. ; https://orcid.org/, Alexander, D., Nagy, Z., Nagy, Zoltan, Deichmann, R., Alexander, Daniel C., Weiskopf, Nikolaus, Deichmann, Ralf, Nikolaus Weiskopf   +11 more
core   +1 more source

Role of Magnetic Resonance Diffusion Tensor Imaging in Assessment of Normal Appearing White Matter in Patients with Multiple Sclerosis [PDF]

Al-Azhar International Medical Journal
Background: One non-invasive cutting-edge imaging method that can reveal details on the brain's white matter pathways' structural integrity is diffusion tensor imaging.
Ahmed Abdo, Mokhtar Ramadan, mohamed elfeshawy, Mahmoud Ahmed   +3 more
doaj   +1 more source

Impact of Age on the Diagnostic Yield of Routine EEG in People With Childhood or Juvenile Absence Epilepsy: A Cross‐Sectional Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background We aimed to identify the proportion of individuals with a confirmed diagnosis of childhood absence epilepsy (CAE) or juvenile absence epilepsy (JAE) who show a negative routine EEG (rEEG), and to determine the main factors associated with this finding.
Francesco Fortunato, Alessia Giugno, Miriam Sturniolo, Enrico Fratto, Pio Zoleo, Francesca Felicia Operto, Ilaria Sammarra, Antonio Gambardella   +7 more
wiley   +1 more source

Using Diffusion Tensor Imaging to Evaluate Microstructural Changes and Outcomes after Radiofrequency Rhizotomy of Trigeminal Nerves in Patients with Trigeminal Neuralgia. [PDF]

PLoS ONE, 2016
Trigeminal neuralgia is characterized by facial pain that may be sudden, intense, and recurrent. Our aim was to investigate microstructural tissue changes of the trigeminal nerve in patients with trigeminal neuralgia resulting from neurovascular ...
Shu-Tian Chen, Jen-Tsung Yang, Mei-Yu Yeh, Hsu-Huei Weng, Chih-Feng Chen, Yuan-Hsiung Tsai   +5 more
doaj   +1 more source

Diffusion Basis Spectrum Imaging of Tissue Microstructure and Early Treatment in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Conventional MRI cannot resolve the coexisting pathological processes within multiple sclerosis tissue. Diffusion Basis Spectrum Imaging decomposes the diffusion signal into fiber, cell, and hindered ratios indexing axonal integrity, cellularity, and extracellular space, respectively.
Apisit Kaewsanit, Aime Luna, Bradley Judge, Nicole Shelley, Karl Friedrichsen, Jayashree Rajamanickam, Zhude Tu, Yong Wang, Tammie L. S. Benzinger, Qing Wang, Matthew R. Brier   +10 more
wiley   +1 more source

Multi-site genetic analysis of diffusion images and voxelwise heritability analysis : a pilot project of the ENIGMA–DTI working group [PDF]

, 2013
The ENIGMA (Enhancing NeuroImaging Genetics through Meta-Analysis) Consortium was set up to analyze brain measures and genotypes from multiple sites across the world to improve the power to detect genetic variants that influence the brain.
Sprooten, Emma, Glahn, David C., Curran, Joanne E., Mandl, R.C., Almasy, L., Kochunov, Peter V., Hulshoff Pol, H.E., Curran, J.E., Starr, John M., Brouwer, Rachel M., Wardlaw, J.M., Mitchell, Braxton D., Brouwer, R.M., Wright, M.J., Bastin, M.E., Mandl, René C., Medland, Sarah E., Glahn, D.C., Sussmann, Jessika E., Medland, S.E., Martin, N.G., McMahon, K.L., Landman, Bennett A., Hulshoff Pol, Hilleke E., Nichols, T.E., Nichols, Thomas E., Toga, Arthur W., Peterson, C.P., Thompson, P.M., Jahanshad, N., Martin, Nicholas G., Wardlaw, Joanna M., Sprooten, E., Mitchell, B.D., McIntosh, A.M.; id_orcid, Pol, Hilleke E. Hulshoff, Hong, L. Elliot, Peterson, Charles P., Deary, Ian J., Hong, L.E., Kochunov, P.V., Jahanshad, Neda, Duggirala, Ravi, Bastin, Mark E., Fox, Peter T., McIntosh, Andrew M., de Zubicaray, G.I., de Zubicaray, Greig I., Landman, B.A., Fox, P.T., Thompson, Paul M., McMahon, Katie L., Blangero, J., Olvera, Rene L., Sussmann, J.E., Olvera, R.L., McIntosh, A.M., Wright, Margaret J., Duggirala, R., Almasy, Laura, Blangero, John, Starr, J.M., Toga, A.W., Deary, I.J.   +63 more
core   +2 more sources