[PDF] Top 20 Cost Analysis of Diffusion Tensor Imaging and MR Tractography of the Brain
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Cost Analysis of Diffusion Tensor Imaging and MR Tractography of the Brain
... 1.5-T MR im- ager (Philips Intera, Philip Medical Systems software release ...spin-echo-planar imaging se- quence with diffusion ...no diffusion weighting was obtained; diffusion ... See full document
11
Incorporating Functional MR Imaging into Diffusion Tensor Tractography in the Preoperative Assessment of the Corticospinal Tract in Patients with Brain Tumors
... intravoxel tensor direction averaging) but also has the CBT branch a sharply deflecting ...single tensor-fitting algorithm to fail when one attempts to track the CBT from a seed region of interest placed in ... See full document
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Forensic Application of Postmortem Diffusion Weighted and Diffusion Tensor MR Imaging of the Human Brain in Situ
... the analysis of the influence of the cause of death, subject groups were defined as the following: 1) mechanical brain trauma (n ⫽ 4), with all subjects show- ing signs of a direct blunt force impact and ... See full document
7
Principles and Limitations of Computational Algorithms in Clinical Diffusion Tensor MR Tractography
... the tractography algorithms reported to date lies in the difficulty of obtaining systematic verification for the human brain in ...successful tractography results compared with manganese-enhanced ... See full document
11
Diffusion Weighted Imaging and Diffusion Tensor Imaging for Differentiating High Grade Glioma from Solitary Brain Metastasis: A Systematic Review and Meta Analysis
... advanced MR imaging techniques in attempts to differentiate the infiltrative edema of glioma from metastatic va- sogenic ...enhancing brain lesions; however, the results are ...in brain ... See full document
7
Precommissural Fornix in the Human Brain: A Diffusion Tensor Tractography Study
... echo-planar imaging. For each of the 32 non-collinear diffusion sensitizing gradients, we acquired 67 contiguous slices parallel to the anterior commissure-posterior commissure ...line. Imaging ... See full document
6
FLAIR Diffusion Tensor MR Tractography: Comparison of Fiber Tracking with Conventional Imaging
... an imaging time intrinsically longer than that of conven- tional DTI due to long TR (several T1s) needed for complete recovery of the longitudinal magnetization plus a long TI (about 2 seconds) for effective CSF ... See full document
7
<p>Diffusion Tensor Imaging And Tractography In Autistic, Dysphasic, And Healthy Control Children</p>
... Background: Diffusion tensor imaging (DTI) is a powerful tool for investigating brain anatomical ...compare brain connectivity among children with autism spectrum disorders (ASD), ... See full document
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Diffusion Tensor MR Imaging Reveals Persistent White Matter Alteration after Traumatic Brain Injury Experienced during Early Childhood
... data analysis methods, even in this relatively small sample of ...voxel-wise analysis was used to explore WM through- out the brain, including areas that may be affected by the TBI but might be ... See full document
7
Assessment of White Matter Tract Damage in Patients with Amyotrophic Lateral Sclerosis: A Diffusion Tensor MR Imaging Tractography Study
... the diffusion tensor eigenvalue analysis, it appears that MD and FA changes are secondary to an increased diffu- sion perpendicular to WM fibers (as indicated by an increased radial D) rather than ... See full document
5
Electrophysiologic Validation of Diffusion Tensor Imaging Tractography during Deep Brain Stimulation Surgery
... 3T MR imaging studies and postoperative 3D CT data were integrated in the StealthViz DT software application (Medtronic Nav- igation, Louisville, Colorado) on a stand-alone Linux workstation (Intel, Santa ... See full document
9
Voxel Based Analysis of Diffusion Tensor Imaging in Mild Traumatic Brain Injury in Adolescents
... several brain regions, and these changes were highly correlated with PCS severity and emotional ...DTI analysis is capable of identifying po- tentially diffuse axonal injury-vulnerable regions invisible to ... See full document
7
Diffusion tensor magnetic resonance imaging and fibre tractography in the brain
... In particular, the limitations and requirements of DT-MRI fibre tracking have not been fully assessed. Fibre tracking relies on the use of good quality diffusion-weighted images, together with a suitable algorithm ... See full document
173
Diffusion Tensor MR Imaging of the Brain in Human Immunodeficiency Virus–Positive Patients
... water diffusion parallels white matter fibers (fast pool), whereas b values higher than that range measure mostly water diffu- sion perpendicular to the fibers (slow pool) (29, ...q-space analysis) that ... See full document
7
Diffusion Tensor MR Imaging and Fiber Tractography: Theoretic Underpinnings
... where k is a proportionality constant and T2 is the transverse relaxation time of the interrogated tissue. Hence, T2 prolon- gation within pathologic tissues may cause DWI signal hyper- intensity, even in the absence of ... See full document
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White Matter Abnormalities Are Related to Microstructural Changes in Preterm Neonates at Term Equivalent Age: A Diffusion Tensor Imaging and Probabilistic Tractography Study
... conventional MR imaging accord- ing to the scores of Woodward et al, 11 because they studied a large population (167 infants) and included the neurodevel- opmental outcome at 2 years of age (corrected for ... See full document
7
Diffusion Tensor MR Imaging of the Brain: Effect of Diffusion Weighting on Trace and Anisotropy Measurements
... Recently, it has been shown, using a Monte Car- lo computer simulation program, that of all the measures of anisotropy mentioned above, the FA has the highest contrast-to-noise ratio in gray and white matter (27). In ... See full document
8
Magnetization Transfer and Diffusion Tensor MR Imaging of Acute Disseminated Encephalomyelitis
... appearing brain tissue changes (10, ...conventional MR images, they had lesion loads that were larger than those of patients with ...mal-appearing brain tissue histograms a great ... See full document
6
Diffusion Tensor Imaging and Fiber Tractography in Children with Craniosynostosis Syndromes
... study was longer; therefore, we included more patients. In this study, we added 6 patients with Apert syndrome, 2 with Crouzon- Pfeiffer syndrome, 2 with Muenke syndrome, and 5 with complex craniosynostosis. Sixty-nine ... See full document
7
Selective frontal neurodegeneration of the inferior fronto-occipital fasciculus in progressive supranuclear palsy (PSP) demonstrated by diffusion tensor tractography
... It is important to point out that the images of fiber tracts produced by the tractography software probably are an approximation of the underlying neuronal path- ways. Each “fiber” is only a representation of ... See full document
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