Contrast-enhanced ultrasound — (CEUS) is the application of ultrasound contrast medium to traditional medical sonography. Ultrasound contrast agents rely on the different ways in which sound waves are reflected from interfaces between substances. This may be the surface of a… … Wikipedia
Contrast-induced nephropathy — Classification and external resources ICD 10 N99.0 ICD 9 586 Co … Wikipedia
Contrast sensation — is a human ability to distinguish objects which scarcely stand out against a background. Contrast sensation is evaluated on the basis of sinusoidal grids.Fact|date=November 2007 The increased threshold of contrast sensation may be a symptom of… … Wikipedia
Contrast (vision) — Left side of the image has low contrast, the right has higher contrast … Wikipedia
contrast — con|trast1 W2 [ˈkɔntra:st US ˈka:ntræst] n 1.) [U and C] a difference between people, ideas, situations, things etc that are being compared ▪ While there are similarities in the two cultures, there are also great contrasts. contrast between ▪ the … Dictionary of contemporary English
Display contrast — Contrast in visual perception is the difference in appearance of two or more parts of a field seen simultaneously or successively (hence: brightness contrast, lightness contrast, color contrast, simultaneous contrast, successive contrast, etc.).… … Wikipedia
Negative (positive) contrast effect — in operant conditioning In the behavioral theory of operant conditioning, the negative contrast effect is evident when an attempt to reinforce a particular behavior through reward; when the rewards are finally withdrawn or reduced the subject is… … Wikipedia
Density contrast — The Density Contrast is a parameter used in galaxy formation to indicate where there are local enhancements in matter density. It is believed that after inflation, although the universe was mostly uniform, some regions were slightly denser than… … Wikipedia
long-scale contrast — low contrast an increased range of grays on a radiograph, which limits visual differentiation to those image densities produced by relatively disparate structural features … Medical dictionary
Optical microscope — Microscope Uses Small sample observation Notable experiments Discovery of cells Inventor Hans Lippershey Zacharias Jans … Wikipedia
Medical ultrasonography — This article is about using ultrasound to image the human body. For imaging of animals in research, see Preclinical imaging. Sonography redirects here. For the tactile alphabet called sonography , see Night writing. Medical ultrasonography… … Wikipedia