Whole brain apparent diffusion coefficient histogram: A new tool for evaluation of leukoaraiosis
نویسندگان
چکیده
منابع مشابه
Parameterization of the Age-Dependent Whole Brain Apparent Diffusion Coefficient Histogram
PURPOSE The distribution of apparent diffusion coefficient (ADC) values in the brain can be used to characterize age effects and pathological changes of the brain tissue. The aim of this study was the parameterization of the whole brain ADC histogram by an advanced model with influence of age considered. METHODS Whole brain ADC histograms were calculated for all data and for seven age groups ...
متن کاملA Whole-Tumor Histogram Analysis of Apparent Diffusion Coefficient Maps for Differentiating Thymic Carcinoma from Lymphoma
Objective To assess the performance of a whole-tumor histogram analysis of apparent diffusion coefficient (ADC) maps in differentiating thymic carcinoma from lymphoma, and compare it with that of a commonly used hot-spot region-of-interest (ROI)-based ADC measurement. Materials and Methods Diffusion weighted imaging data of 15 patients with thymic carcinoma and 13 patients with lymphoma were ...
متن کاملWhole-body diffusion-weighted imaging for staging lymphoma: are apparent diffusion coefficient derived histogram parameters useful for lesion characterisation?
Methods Fifteen patients with histopathology proven lymphoma (11 Non-Hodgkin; 4 Hodgkin lymphomas) underwent WB-DWI using 2 b-values (0-1000 s/mm). On coronal reformatted b1000 WB-DWI images, regions of interest (ROI) were drawn semi-automatically on lymph nodes in all nodal stations (n=267) and in axial and appendicular bone regions (n=53). For each ROI, a histogram was constructed from which ...
متن کاملWhole-brain apparent diffusion coefficient in traumatic brain injury: correlation with Glasgow Coma Scale score.
BACKGROUND AND PURPOSE Patients with traumatic brain injury (TBI) and low Glasgow coma scale (GCS) scores may have severe injury associated with cellular disruption that can be studied with whole-brain apparent diffusion coefficient (ADC) histograms. We retrospectively studied this hypothesis and correlated ADC with GCS. METHODS Twenty-one patients (37.81 +/- 41.3 years) with TBI were enrolle...
متن کاملHistogram analysis- a useful tool for tissue characterization in brain CT
Introduction: Pixel value in computed tomography (CT) gives the average linear attenuation coefficient of the scanned material in the path of the x-ray beam, being normalized to that of water. It is known that attenuation coefficient or HU value is a function of the chemical characteristic of the material and of the x-ray energy. The CT image shows the HU value by a shade of gr...
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ژورنال
عنوان ژورنال: Journal of Magnetic Resonance Imaging
سال: 2002
ISSN: 1053-1807,1522-2586
DOI: 10.1002/jmri.10050