[PDF] Top 20 Apuntes Del Curso Física I, Ingeniería .
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Diffusion tensor imaging and tractwise fractional anisotropy statistics: quantitative analysis in white matter pathology
... Large discontinuities in bulk magnetic susceptibility pro- duce local magnetic field gradients that notoriously degrade and distort DTI, particularly during echo-planar imaging [20]. These eddy current induced ... See full document
57
A change in brain white matter after shunt surgery in idiopathic normal pressure hydrocephalus: a tract-based spatial statistics study
... with white matter damage, regardless of the underlying, yet unknown, pathophysiological mechanisms involved in INPH ...[1–5]. Diffusion tensor imaging (DTI) has recently been applied to ... See full document
10
Diffusion Tensor Imaging Based Fractional Anisotropy Quantification in the Corticospinal Tract of Patients with Amyotrophic Lateral Sclerosis Using a Probabilistic Mixture Model
... affected. Diffusion tensor imaging (DTI) is an MR imaging technique that can detect and quantify degeneration of nerve ...potential quantitative measure of UMN involve- ...major ... See full document
93
Diffusion Tensor Imaging Mapping of Brain White Matter Pathology in Mitochondrial Optic Neuropathies
... of tensor parameters, including mean diffusivity (MD) and fractional anisotropy ...Major white matter tracts were identified by using the tract-based spatial statistics (TBSS) ... See full document
42
Using DTI to assess white matter microstructure in Cerebral Small Vessel Disease (SVD) in multi-centre studies.
... Diffusion tensor imaging (DTI) metrics such as Fractional Anisotropy (FA) and Mean Diffusivity (MD) have been proposed as clinical trial markers of cerebral small vessel disease due to ... See full document
104
White matter abnormalities of corpus callosum in patients with bipolar disorder and suicidal ideation
... DTI: diffusion tensor imaging; HC: health controls; FA: fractional anisotropy; MRI: magnetic resonance imag- ing; WM: white matter; DSM-IV: Diagnostic and Statistical ... See full document
14
Tract Based Spatial Statistical Analysis of Diffusion Tensor Imaging in Pediatric Patients with Mitochondrial Disease: Widespread Reduction in Fractional Anisotropy of White Matter Tracts
... disrupt white matter. Comparison with acquired white matter pathology such as periventricular leukomalacia and traumatic brain in- jury should also be ... See full document
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Reduced Fractional Anisotropy on Diffusion Tensor Magnetic Resonance Imaging After Hypoxic-Ischemic Encephalopathy
... A large range of ADC values was evident in the pa- tient group, suggesting that infants had lesions that var- ied not only in their location and severity but also in their degree of evolution at the time of ... See full document
16
The role of perfusion and diffusion MRI in the assessment of patients affected by probable idiopathic normal pressure hydrocephalus. A cohort-prospective preliminary study
... ntricular white matter (PVWM) ...perfusion imaging with its relatively high resolution and sensitivity for deep structures might be of value as a diagnostic and predictive tool ...of diffusion ... See full document
5
Accurate Patient Specific Machine Learning Models of Glioblastoma Invasion Using Transfer Learning
... MR imaging signal (for any given contrast) and regional TCD demonstrates patient-to-patient variability within a given ...MR imaging– based models for quantifying TCD and ...MR imaging– histologic ... See full document
130
Diffusion tensor imaging for characterizing tumor microstructure and improving diagnostic performance on breast MRI: a prospective observational study
... Breast Imaging Reporting and Data Sys- tem (BI-RADS) category 4 or 5 who underwent core needle biopsy (CNB) and/or surgical excision were eli- gible for the ... See full document
5
Subcortical Deep Gray Matter Pathology in Patients with Multiple Sclerosis Is Associated with White Matter Lesion Burden and Atrophy but Not with Cortical Atrophy: A Diffusion Tensor MRI Study
... sively investigated in healthy people whose pathophysiologic al- teration of the brain cannot be attributable to the inflammatory process in the central nervous system. Therefore, in the current study, we aimed to ... See full document
199
Ultra High Field Diffusion MRI Reveals Early Axonal Pathology in Spinal Cord of ALS mice
... animal diffusion imaging studies ALS SCs have shown that regional changes in parameters were more affected at the distal than proximal regions [14, ...MRI diffusion studies on the an- terolateral ... See full document
6
Lessons of ALS imaging: Pitfalls and future directions A critical review
... The challenges of recruiting large patient cohorts in ALS imaging studies are obvious due to disease-specific factors such as orthopnoea, dyspnoea, and sialorrhoea. Yet, despite these recognised limitations, ... See full document
38
Assessment of White Matter Damage in Subacute Sclerosing Panencephalitis Using Quantitative Diffusion Tensor MR Imaging
... MR imaging on 10 age- and sex-matched right-handed healthy controls (age range, 5–12 years, 8 boys and 2 girls) to compare age-related changes in brain parenchyma in chil- dren with ... See full document
25
Diffusion Tensor MR Imaging of Cerebral Gliomas: Evaluating Fractional Anisotropy Characteristics
... There were limitations to our study. The results were ob- tained on the basis of a small number of patients. Some pa- tients only had biopsies that could be associated with the po- tential for tumor undergrading. On the ... See full document
8
The role of MR volumetry in brain atrophy assessment in multiple sclerosis: A review of the literature
... cortical atrophy in those subjects who developed a con- firmed diagnosis of MS within 3 years of the clinical onset of CIS. They reported that the mean decrease in GM frac- tional (GMF) volume was −3.3% while in CIS ... See full document
7
Non parametric combination and related permutation tests for neuroimaging
... A combination strategy that resembles the Stouffer method, but uses the Student’s t statistic, was proposed by Winer [1962], albeit not found in later editions of the book. The idea is to sum the t statistics for ... See full document
75
Diffusion Tensor Tractography Based Group Mapping of the Pyramidal Tract in Relapsing Remitting Multiple Sclerosis Patients
... Diffusion tensor tractography was performed on DTI images em- ploying the principal diffusion direction information based deter- ministic tracking algorithm by using the 4th-order Runge-Kutta ... See full document
135
Diffusion tensor imaging and tractography of the sciatic and femoral nerves in healthy volunteers at 3T
... Diffusion tensor imaging (DTI) is an advanced magnetic resonance (MR) imaging technique, which provides in- formation about the microstructure of nerve fibers non- invasively ...MR ... See full document
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