Results 81 to 90 of about 1,385,486 (215)

Analysis of Muscle Fibre Orientation in the Human Medial and Lateral Pterygoid Muscles Using Diffusion Tensor Imaging: A Methodological Study

Journal of Oral Rehabilitation, EarlyView.
This study used diffusion tensor imaging (DTI) tractography to assess in vivo 3D muscle fibre orientation of the medial and lateral pterygoid muscles in ten healthy men. Scans were performed at simulated mandibular rest and 25‐mm open‐mouth positions. DTI tractography successfully visualised the internal fibre architecture. During mouth opening, marked
Shiori Kinomura, Takehiko Sugano, Yasuko Tatewaki, Kentaro Oba, Kenta Shobara, Toru Ogawa, Yasuyuki Taki, Kuniyasu Niizuma, Ryuta Kawashima, Keiichi Sasaki, Nobuhiro Yoda   +10 more
wiley   +1 more source

Implementation of clinical tractography for pre-surgical planning of space occupying lesions: An investigation of common acquisition and post-processing methods compared to dissection studies.

PLoS ONE, 2020
BACKGROUND AND PURPOSE:There is limited standardization of acquisition and processing methods in diffusion tractography for pre-surgical planning, leading to a range of approaches.
Jonathan Ashmore, Hugh G Pemberton, William D Crum, Jozef Jarosz, Gareth J Barker   +4 more
doaj   +1 more source

Validation of DTI tractography-based measures of primary motor area connectivity in the squirrel monkey brain. [PDF]

PLoS ONE, 2013
Diffusion tensor imaging (DTI) tractography provides noninvasive measures of structural cortico-cortical connectivity of the brain. However, the agreement between DTI-tractography-based measures and histological 'ground truth' has not been quantified. In
Yurui Gao, Ann S Choe, Iwona Stepniewska, Xia Li, Malcolm J Avison, Adam W Anderson   +5 more
doaj   +1 more source

Multiscale four‐dimensional imaging of cardiac remodelling after myocardial infarction

The Journal of Physiology, EarlyView.
Abstract figure legend Multiscale 4D imaging framework for integrated phenotyping of post‐infarction remodelling. Myocardial infarction triggers dynamic changes across mechanical, haemodynamic and biological axes, progressing from acute injury and inflammation to extracellular matrix remodelling and scar maturation.
Hanzhou Lei, Boris Martinac, Yang Guo
wiley   +1 more source

The Connectivity of the Human Pulvinar: A Diffusion Tensor Imaging Tractography Study [PDF]

International Journal of Biomedical Imaging, 2007
Previous studies in nonhuman primates and cats have shown that the pulvinar receives input from various cortical and subcortical areas involved in vision. Although the contribution of the pulvinar to human vision remains to be established, anatomical tracer and electrophysiological animal studies on cortico‐pulvinar circuits suggest an important role ...
Sandra E. Leh, M. Mallar Chakravarty, Alain Ptito   +2 more
openaire   +4 more sources

Finsler geometry on higher order tensor fields and applications to high angular resolution diffusion imaging. [PDF]

, 2009
We study 3D-multidirectional images, using Finsler geometry. The application considered here is in medical image analysis, specifically in High Angular Resolution Diffusion Imaging (HARDI) (Tuch et al. in Magn. Reson. Med.
Florack, L.M.J., Luc Florack, Florack, Luc, Astola, Laura, Florack, L., Laura Astola, Astola, L.J., Astola, L.   +7 more
core   +1 more source

p‐Brain: A Modular Open‐Source Framework for Automated Quantitative DCE‐MRI of Cerebral Perfusion, Microvasculature, and Blood–Brain Barrier Permeability

Magnetic Resonance in Medicine, Volume 96, Issue 6, Page 2601-2614, December 2026.
ABSTRACT We present p‐Brain, a modular, open‐source framework for reproducible, automated quantitative DCE‐MRI at scale. Rather than a fixed pipeline, p‐Brain is built from interchangeable stages (ingestion, T1/M0$$ {T}_1/{M}_0 $$ fitting, vascular and tissue ROI extraction, signal‐to‐concentration conversion, kinetic modeling, and quality control ...
Edis D. Tireli, Stig P. Cramer, Ulrich Lindberg, Derya Tireli, Mark B. Vestergaard, Henrik B. W. Larsson   +5 more
wiley   +1 more source

A systematic review of DTI studies in Bipolar Disorder [PDF]

, 2012
Includes bibliographical references.In the last decade, multiple diffusion tensor imaging (DTI) studies have revealed changes in the microstructure of white matter in bipolar disorder.
Nortje, Gareth
core   +1 more source

Feasibility study to unveil the potential: considerations of constrained spherical deconvolution tractography with unsedated neonatal diffusion brain MRI data

Frontiers in Radiology
PurposeThe study aimed to (1) assess the feasibility constrained spherical deconvolution (CSD) tractography to reconstruct crossing fiber bundles with unsedated neonatal diffusion MRI (dMRI), and (2) demonstrate the impact of spatial and angular ...
Anouk S. Verschuur, Anouk S. Verschuur, Anouk S. Verschuur, Chantal M. W. Tax, Chantal M. W. Tax, Martijn F. Boomsma, Martijn F. Boomsma, Helen L. Carlson, Gerda van Wezel-Meijler, Regan King, Alexander Leemans, Lara M. Leijser   +11 more
doaj   +1 more source

Intratumoral and Peritumoral Functional Connectivity Reveals Network‐Level Signatures of Glioma

MedComm, Volume 7, Issue 11, November 2026.
Using resting‐state fMRI in 306 glioma patients, this study maps individualized intra‐ and peritumoral functional networks. Novel metrics (RIFR, RPTR) quantify tumor‐related network remodeling, correlating with pathology, structure, cognition, and survival. A prognostic model incorporating these network features achieves an AUC of 0.90.
Hongbo Bao, Yan Bai, Jie Hu, Wencai Ding, Jiacheng Lai, Andrew Zalesky, Ye Ella Tian, Yanmei Tie, Janet Mei, Shengyu Fang, Xing Fan, Licia P. Luna, Craig K. Jones, Jianxun Ren, Weigang Cui, Jiadong Yan, Zeya Yan, Zihan Wang, Renwu Zhang, Zhonghua Lv, Yihang Jiao, Tao Jiang, Peng Liang, Haris I. Sair, Yinyan Wang   +24 more
wiley   +1 more source