objectives: the aim of this study was to assess the effect of tube current, kilovoltage peak (kvp), metal type, and the position of metal objects on metal artifacts in cone-beam computed tomography (cbct) images. materials and methods: titanium and cobalt-chromium rods were fabricated and placed in a dry human mandible. samples were scanned using a promax 3d cbct unit with different milli-amper...

R. Deckers, S. M. Sprinkhuizen, B. J. Crielaard, J. H. Ippel, R. Boelens, T. Lammers, C. J. Bakker, and L. W. Bartels Image Sciences Institute, University Medical Center Utrecht, Utrecht, Netherlands, Department of Pharmaceutics, Utrecht University, Utrecht, Netherlands, Department of NMR Spectroscopy, Bijvoet Center for Biomolecular Research, Utrecht University, Utrecht, Netherlands, Departmen...

C. S. Gil, N. Colgan, A. J. Bakermans, B. J. van Nierop, G. J. Strijkers, H. C. van Assen, and K. M. Curran School of Medicine and Medical Sciences, University College of Dublin, Dublin, Belfield, Dublin 16, Ireland, Biomedical NMR, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands, Biomedical Image Analysis, Department of Biomedical Engineering, E...

1. Avcibas I., Sankur B., and Sayood K., 2002. Statistical evaluation of image quality measures. J. Electron. Imag., 11(2), https://doi.org/10.1117/1.1455.... CrossRef Google Scholar

today the nutritional value of the meals, including snacks has increased because of consumer demand for healthy food. so the aim of this study was to examine the effect of adding stabilized wheat germ on levels of 0, 3, 6, 9, 12 and 15% (based on flour weight) on the quantity and quality of the un-extruded snacks. in order to measure the color values the image processing technique and image j s...

background: breast cancer is one of the most important diseases in females. malaysian women have not excluded. according to the malaysian oncology society [1], about 4% of women (who are 40 years old and above) have involved by breast cancer. masses and microcalcifications are two important signs for breast cancer diagnosis on mammography. according to our estimation, radiologists could diagnos...

background: we investigated whether the lungheart ratio parameter (lhr) can be used to identify the optimum cut off frequency for butterworth filter in 99mtc myocardial spect imaging. materials and methods: this study involved a cardiac phantom system consisting of cardiac insert in which 1.10 cm cold defect was inserted into its myocardium wall and filled with 4.0 μci/ml (0.148 mbq/ml) 99mtc c...

Criticality in graviational microlensing is an everyday issue because that is what generates microlensing signals which may be of photon-challenged compact objects such as black holes or planetary systems ET calls home. The criticality of these quasi-analytic lenses is intrinsically quadratic, and the critical curve behaves as a mirror generating two mirror images along the image line (‖ ±E−) a...

We have used the Keck 10m telescope to count objects as a function of image size in two high galactic latitude fields covering 1.5 arcmin and reaching 50% completeness depths of K=24 and J=24.5 for stellar sources. Our counts extend ∼1 magnitude deeper in K than those of surveys with other telescopes; complement other Keck surveys in the K band that provide counts at comparable or shallower dep...