Results 211 to 220 of about 46,270 (256)
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Advantages and drawbacks of breast DTI
European Journal of Radiology, 2012In 1965, Stejskal and Tanner developed the pulsed gradient spin echo (PGSE) technique for measuring the diffusion coefficient in solution [1]. The discovery of MRI led to the development of diffusion imaging sequences particularly sequences based on echo planar imaging – EPI that facilitate fast clinical diffusion measurements.
Edna, Furman-Haran +6 more
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Magnetic Resonance in Medicine, 2004
AbstractWhile holding vast potential, diffusion tensor imaging (DTI) with single‐excitation protocols still faces serious challenges. Limited spatial resolution, susceptibility to magnetic field inhomogeneity, and low signal‐to‐noise ratio (SNR) may be considered the most prominent limitations.
Jaermann T +10 more
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AbstractWhile holding vast potential, diffusion tensor imaging (DTI) with single‐excitation protocols still faces serious challenges. Limited spatial resolution, susceptibility to magnetic field inhomogeneity, and low signal‐to‐noise ratio (SNR) may be considered the most prominent limitations.
Jaermann T +10 more
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Neuropsychiatric applications of DTI – a review
NMR in Biomedicine, 2002AbstractPsychiatric disorders are common throughout the world and are a leading cause of disability. There is a growing appreciation of the importance of connectivity to brain function. Disruption of this connectivity can result in brain dysfunction manifested in impaired cognitive functioning and the development of clinical symptoms.
K O, Lim, J A, Helpern
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Magnetic Resonance Imaging, 2005
The development of NMR diffusion imaging and diffusion tensor imaging (DTI) has offered the possibility of studying the porous structures beyond anatomical imaging. In fact, random molecular motions, within tissue components, probe tissue microstructures.
Rossi, C +4 more
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The development of NMR diffusion imaging and diffusion tensor imaging (DTI) has offered the possibility of studying the porous structures beyond anatomical imaging. In fact, random molecular motions, within tissue components, probe tissue microstructures.
Rossi, C +4 more
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IEEE Transactions on Medical Imaging, 2007
This paper presents a novel fuzzy-segmentation method for diffusion tensor (DT) and magnetic resonance (MR) images. Typical fuzzy-segmentation schemes, e.g., those based on fuzzy C means (FCM), incorporate Gaussian class models that are inherently biased towards ellipsoidal clusters characterized by a mean element and a covariance matrix.
Suyash P. Awate +2 more
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This paper presents a novel fuzzy-segmentation method for diffusion tensor (DT) and magnetic resonance (MR) images. Typical fuzzy-segmentation schemes, e.g., those based on fuzzy C means (FCM), incorporate Gaussian class models that are inherently biased towards ellipsoidal clusters characterized by a mean element and a covariance matrix.
Suyash P. Awate +2 more
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Direction-Controlled DTI Interpolation
2015Diffusion Tensor Imaging (DTI) is a popular model for representing diffusion weighted magnetic resonance images due to its simplicity and the fact that it strikes a good balance between signal fit and robustness. Nevertheless, problematic issues remain. One of these concerns the problem of interpolation.
Florack, Luc +2 more
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Sensor Review, 1991
Dr John Fleming is the co‐ordinator of the Department of Trade and Industry's Advanced Sensors Technology Transfer Programme, which sponsored the seminar reported on page 21. Here he talks to Jack Hollingum about the aims of the programme.
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Dr John Fleming is the co‐ordinator of the Department of Trade and Industry's Advanced Sensors Technology Transfer Programme, which sponsored the seminar reported on page 21. Here he talks to Jack Hollingum about the aims of the programme.
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Intraoperative Acquisition of fMRI and DTI
Neurosurgery Clinics of North America, 2011Multimodal functional navigation enables removing a tumor close to eloquent brain areas with low postoperative deficits, whereas additional intraoperative imaging ensures that the maximum extent of the resection can be achieved and updates the image data compensating for the effects of brain shift.
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Theoretical and Natural Science
The DTI technology used to observe the Nerve fascicle - “Nerve fascicle imaging” was also discussed in detail. Two types of deterministic and probabilistic traction imaging were compared from effectiveness and computational efficiency perspectives. Then an experimental study was conducted using different software to compare the fiber bundles of the ...
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The DTI technology used to observe the Nerve fascicle - “Nerve fascicle imaging” was also discussed in detail. Two types of deterministic and probabilistic traction imaging were compared from effectiveness and computational efficiency perspectives. Then an experimental study was conducted using different software to compare the fiber bundles of the ...
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Diffusion Tensor Imaging (DTI)
2018Diffusion Tensor Imaging is an MRI technique that allows in vivo noninvasive measurement of the translational motion of water, providing information about its anisotropy (or lack of it) in different tissues. DTI has been commonly used to quantitatively measure the integrity of tissues which may be compromised by neurological disease, such as white ...
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