Purpose: To assess the visualization of different coronary stents using 16and 64-slice multi-detector computed tomography (MDCT) coronary angiography. Materials and Methods: Ten different coronary artery stents commercially used in Korea were placed in a vascular phantom and examined with a 16and 64-slice MDCT; for image reconstruction, a standard medium-soft (B30f) kernel and a stent-optimized...

Turbinate destruction is an important diagnostic criterion in canine and feline nasal computed tomography (CT). However decreased turbinate visibility may also be caused by technical CT settings and nasal fluid. The purpose of this experimental, crossover study was to determine whether fluid reduces conspicuity of canine and feline nasal turbinates in CT and if so, whether CT settings can maxim...

B-Reps (Boundary Representations) represent geometric objects defined as stratified point sets. This paper extends boundary representations of non-manifold geometric objects to n-dimensional stratified objects possibly having incomplete boundaries. The proposed representation has given rise to a new geometric kernel called DiX (Data in Xtratus), having been derived from a mathematical model bas...

The voxel-based morphometry (VBM) technique using brain magnetic resonance imaging (MRI) objectively maps gray matter loss on a voxel-by-voxel basis after anatomic standardization. In patients with Alzheimer's disease (AD), reductions of gray matter volume, mainly in the medial temporal structures, have been reported; however, inhomogeneity and geometric distortion of the field intensity hamper...

0308-8146/$ see front matter 2009 Elsevier Ltd. A doi:10.1016/j.foodchem.2009.01.089 Abbreviations: E, extruded; EP, extruded and puffe puffed; NMR, nuclear magnetic resonance; MRI, ma parboiled; PDE, partial differential equations; PP, parb tomography; l-CT, micro computer tomography; W demand; WP, wet-processed and puffed. * Corresponding author. Tel.: +386 1 4766552; fax: E-mail address: ale...

A universal approach by Laplace transform to the variational iteration method for fractional derivatives with the nonsingular kernel is presented; in particular, the Caputo-Fabrizio fractional derivative and the Atangana-Baleanu fractional derivative with the non-singular kernel is considered. The analysis elaborated for both non-singular kernel derivatives is shown the necessity of considering...

Studies of physiological diversity and its effect on the expression of traits in plants are used in breeding programs as a selective tool with the aim of selecting special attributes for creating a new product. In this study, the correlation coefficients among 17 horticultural traits of 34 genotypes from 11 different places of Semnan province were examined. A significant positive correlation wa...