Results 11 to 20 of about 2,999,829 (296)

Diffusion tensor imaging and diffusion-weighted imaging on axillary lymph node status in breast cancer patients [PDF]

open access: yesDiagnostic and Interventional Radiology, 2022
PURPOSEThis article will examine the usefulness of diffusion tensor imaging (DTI) and diffusion-weighted imaging (DWI) on the assessment of axillary lymph nodes (ALN) of breast cancer patients.METHODSAxillary lymph nodes in 66 breast cancer patients were
Nazmi Kurt   +8 more
doaj   +2 more sources

Diffusion tensor imaging and beyond [PDF]

open access: yesMagnetic Resonance in Medicine, 2011
The diffusion of water molecules inside organic tissues is often anisotropic (1). Namely, if there are aligned structures in the tissue, the apparent diffusion coefficient (ADC) of water may vary depending on the orientation along which the diffusion-weighted (DW) measurements are taken.
Tournier, Jacques-Donald   +2 more
openaire   +3 more sources

Exploiting Spatial Information to Enhance DTI Segmentations via Spatial Fuzzy c-Means with Covariance Matrix Data and Non-Euclidean Metrics

open access: yesApplied Sciences, 2021
A diffusion tensor models the covariance of the Brownian motion of water at a voxel and is required to be symmetric and positive semi-definite. Therefore, image processing approaches, designed for linear entities, are not effective for diffusion tensor ...
Safa Elsheikh, Andrew Fish, Diwei Zhou
doaj   +1 more source

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

open access: yes, 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.   +9 more
core   +2 more sources

In ovo monitoring of smooth muscle fiber development in the chick embryo: diffusion tensor imaging with histologic correlation. [PDF]

open access: yesPLoS ONE, 2012
BACKGROUND: Magnetic resonance imaging is a noninvasive method of evaluating embryonic development. Magnetic resonance diffusion tensor imaging, which is based on the measuring the directional diffusivity of water molecules, is an established method of ...
Jianrong Xu   +7 more
doaj   +1 more source

An error analysis of probabilistic fibre tracking methods: average curves optimization [PDF]

open access: yes, 2009
Fibre tractography using diffusion tensor imaging is a promising method for estimating the pathways of white matter tracts in the human brain. The success of fibre tracking methods ultimately depends upon the accuracy of the fibre tracking algorithms and
Ratnarajah, N.   +3 more
core   +3 more sources

Diffusion Tensor Imaging in Joubert Syndrome [PDF]

open access: yesAmerican Journal of Neuroradiology, 2007
Neuropathologic findings and preliminary imaging studies demonstrated the absence of pyramidal tract and superior cerebellar peduncular decussation in individual patients with Joubert syndrome (JS). We hypothesized that functional-structural neuroimaging findings do not differ between the genetic forms of JS.MR imaging was performed with a 3T MR ...
PORETTI A   +6 more
openaire   +8 more sources

Diffusion Tensor Imaging: on the assessment of data quality - a preliminary bootstrap analysis [PDF]

open access: yes, 2003
In the field of nuclear magnetic resonance imaging, diffusion tensor imaging (DTI) has proven an important method for the characterisation of ultrastructural tissue properties.
Heim, Stefan   +4 more
core   +1 more source

Voxel-based clustered imaging by multiparameter diffusion tensor images for glioma grading

open access: yesNeuroImage: Clinical, 2014
Gliomas are the most common intra-axial primary brain tumour; therefore, predicting glioma grade would influence therapeutic strategies. Although several methods based on single or multiple parameters from diagnostic images exist, a definitive method for
Rika Inano   +8 more
doaj   +1 more source

Longitudinal brain white matter alterations in minimal hepatic encephalopathy before and after liver transplantation. [PDF]

open access: yesPLoS ONE, 2014
Cerebral edema is the common pathogenic mechanism for cognitive impairment in minimal hepatic encephalopathy. Whether complete reversibility of brain edema, cognitive deficits, and their associated imaging can be achieved after liver transplantation ...
Wei-Che Lin   +8 more
doaj   +1 more source

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