نتایج جستجو برای: volumetry
تعداد نتایج: 1190 فیلتر نتایج به سال:
AIM To evaluate the diagnostic performance of computed tomography (CT) volumetry for discriminating the fibrosis stage in patients with nonalcoholic fatty liver disease (NAFLD). METHODS A total of 38 NAFLD patients were enrolled. On the basis of CT imaging, the volumes of total, left lateral segment (LLS), left medial segment, caudate lobe, and right lobe (RL) of the liver were calculated wit...
BACKGROUND Water displacement leg volumetry is a highly reproducible method, allowing the confirmation of efficacy of vasoactive substances. Nevertheless errors of its execution and the selection of unsuitable patients are likely to negatively affect the outcome of clinical studies in chronic venous insufficiency (CVI). DISCUSSION Placebo controlled double-blind drug studies in CVI were searc...
Methods We prospectively enrolled healthy 115 children and adolescents, mean age 12.4±4.1 years, range 4.4-20.3, with no acquired or congenital heart disease, no chronic illness or any competitive sports activities. Transversal routine 2D steady-state free-precession acquisition was used to cover the whole heart. We determined maximal and minimal volumes of both atria and calculated cyclic volu...
▼ Introduction: Autologous fat transplantation to the female breast is becoming generally accepted as a standard procedure in plastic surgery. Periglandular planes and also intrapectoral planes are used, based on the idea of having a highly vascularised matrix. To assess this surgical technique a reproducible and exact tool for volume analysis is necessary. Methods: The volume of pectoral muscl...
INTRODUCTION Various methods are available to measure hippocampal atrophy rate. We compared methods to predict Alzheimer's dementia. METHODS Participants with brain imaging at ages 69 and 73 years were identified from a previous study. Simple manual measures and computationally automated volumetry were performed. Receiver operating characteristics assessed the predictive ability of each metho...
Introduction: Evolution of the brain during life can be divided in three time periods: a period of maturation characterized by increasing myelination and brain growth, an intermediate adulthood period characterized by relative stability, and an ageing period marked by ventricular enlargement, brain atrophy, and white matter (WM) and gray matter (GM) deterioration. Furthermore, these brain evolu...
The purpose of this study was to examine reliability and validity of a new method of measuring hand size in which a tape measure is wrapped around the hand in a figure-of-eight pattern. In the first experiment, two testers measured hand size in 60 individuals with no recent history of injury or surgery. Intraclass correlation coefficients of 0.99 and 0.97 indicated high intratester and intertes...
Gray matter volumetry (i.e., atlas-based volumetry [1, 2]) and morphometry (i.e., voxel-based morphometry (VBM) [3]) using three-dimensional T1-weighted magnetic resonance images (3D-T1WIs) with spatial normalization have been used to estimate local brain volume in normal subjects [4 –7] and in patients (e.g., in Alzheimer’s disease (AD) [8], epilepsy[9], diabetes [10], and panic disorder [11])...
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