[PDF] Top 20 Niveles de ansiedad y agresividad en adolescentes de una institución educativa, Chiclayo 2017
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Multiparametric Imaging and MR Image Texture Analysis in Brain Tumors
... measure imaging appearance, we used three first-order features (the mean signal intensity, standard deviation of the signal intensity, and skewness) derived from the gray-level histogram, where mean and standard ... See full document
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Computer Extracted Texture Features to Distinguish Cerebral Radionecrosis from Recurrent Brain Tumors on Multiparametric MRI: A Feasibility Study
... clinical MR imaging studies, we allowed both mixed and predom- inant RN/tumor recurrence cases to be included within our hold- out test cohort obtained from another institution (University of Texas Medical ... See full document
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Preoperative Proton MR Spectroscopic Imaging of Brain Tumors: Correlation with Histopathologic Analysis of Resection Specimens
... al MR imaging is that tumor and radiation necrosis may appear very similar to enhancing ...MRS imaging data correlated more closely with histologic findings and provided a tool for assessing tumor ... See full document
144
Ensemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion Weighted MRI
... LOWB brain mask before ...different MR imaging acquisition ...regression analysis as a function of the manually segmented lesion volumes ... See full document
210
Neuroimaging in Pediatric Brain Tumors: Gd DTPA–enhanced, Hemodynamic, and Diffusion MR Imaging Compared with MR Spectroscopic Imaging
... using analysis software (SAGE; GE Medical Systems) and software developed in- house by using interactive data language (IDL) ...scopic analysis software (GE Medical Systems) ...used imaging editing ... See full document
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The Effect of Brain Tumors on BOLD Functional MR Imaging Activation in the Adjacent Motor Cortex: Implications for Image guided Neurosurgery
... F IG 2. A, BOLD fMR activation from a finger-tapping paradigm coregistered to an axial T1-weighted image (500/14 [TR/TE]) in patient 8. Pathologic analysis revealed a left frontoparietal glioblastoma ... See full document
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Multiparametric Iterative Self Organizing MR Imaging Data Analysis Technique for Assessment of Tissue Viability in Acute Cerebral Ischemia
... the MR imaging studies were performed during a rather wide time interval (5–24 hours), which, however, does reflect the clinical reality of stroke ...present analysis, as MR imaging ... See full document
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Quantitative Measurement of Microvascular Permeability in Human Brain Tumors Achieved Using Dynamic Contrast enhanced MR Imaging: Correlation with Histologic Grade
... curve-fitting analysis, defined in Equations 1 and 2, on a pixel-by-pixel basis, but in our experience this is impractical and yields image maps that are potentially limited by ... See full document
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Multiparametric Analysis of Permeability and ADC Histogram Metrics for Classification of Pediatric Brain Tumors by Tumor Grade
... MATERIALS AND METHODS: DTI and dynamic contrast-enhanced MR imaging using T1-mapping with flip angles of 2°, 5°, 10°, and 15°, followed by a 0.1-mmol/kg body weight gadolinium-based bolus was performed on ... See full document
146
Texture Analysis: A Review of Neurologic MR Imaging Applications
... Texture analysis is a potentially valuable and versatile tool in neuro-MR ...such, texture analysis will likely play a supportive rather than a comprehensive role in the future of ... See full document
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Analysis of Imaging Artifacts in MR Brain Images
... MRI brain images are widely used in medical applications for research, diagnosis, treatment, surgical planning and image guided ...These MR brain images are often corrupted with various ... See full document
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Optimized multiparametric flow cytometric analysis of circulating endothelial cells and their subpopulations in peripheral blood of patients with solid tumors: a technical analysis
... rare-event analysis, the elimination of RBCs is necessary to enhance signal detection of targeted ...rare-event analysis, improving the cell yield is required and one-step centrifugation method may help to ... See full document
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Diffusion-Weighted Magnetic Resonance Imaging Procedure as a Cancer Diagnosis Application Tool
... The DW-MRI data acquisition techniques were done using the double spin-echo planar image (EPI) at either 1.5T or 3.0T field strength in all the centers. DWI Pulse Sequence DWI sequences are spin echo sequences, ... See full document
11
Diffusion Tensor Imaging of Tract Involvement in Children with Pontine Tumors
... the MR imaging ...interest analysis was blinded to neuro- logic ...1. MR imaging and DTI of a 15-year-old patient with diffuse pontine ... See full document
15
Utility of Percentage Signal Recovery and Baseline Signal in DSC MRI Optimized for Relative CBV Measurement for Differentiating Glioblastoma, Lymphoma, Metastasis, and Meningioma
... rCBV and higher PSR than glioblastoma and metastases; how- ever, we found that the PSR is not strictly better than rCBV at differentiating PCNSL from other types of tumors. While PSR differentiated PCNSL from ... See full document
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Multiparametric MR Imaging of Sinonasal Diseases: Time Signal Intensity Curve– and Apparent Diffusion Coefficient–Based Differentiation between Benign and Malignant Lesions
... MR imaging was performed by using a 1.5-T MR imager (Gyroscan Intera ...DCE analysis from the mid- portion of each sinonasal ...enhanced MR imaging based on the institutional ... See full document
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MR imaging of brainstem tumors
... In the two cases of metastases, plain CT scans were normal, but enhancement was seen after administration of contrast material in one_It appears that MR imaging is sensitive in detecting[r] ... See full document
22
MR Imaging of Pineal Tumors
... Epidermoid.- The lobulated mass found in one patient was of very low signal intensity on T1-weighted images and was hyperintense relative to gray matter generally isointense relative to [r] ... See full document
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Multivoxel proton MR spectroscopy and hemodynamic MR imaging of childhood brain tumors: preliminary observations
... chemical-shift imaging technique in two dimensions with volume preselection. MR imaging was performed using fast spin-echo tech- ...Hemodynamic MR imaging data were acquired every ... See full document
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Challenges in Identifying the Foot Motor Region in Patients with Brain Tumor on Routine MRI: Advantages of fMRI
... All images were acquired with either a 3T or 1.5T Signa LX scan- ner (GE Healthcare, Milwaukee, Wisconsin) with an 8-channel head coil. For fMRI data acquisition, we used the following imag- ing sequence: gradient-echo ... See full document
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