partial volume artifact — an apparent decrease in the visibility of a structure in a cross sectional imaging technique, such as CT or MRI, when either the thickness of the object is much less than that of the slice being used to make the image, or when the object is only… … The new mediacal dictionary
artifact — 1. Anything, especially in a histologic specimen or a graphic record, that is caused by the technique used and not reflecting the original specimen or experiment. 2. A skin lesion produced or perpetuated by self inflicted action, as in dermatitis … Medical dictionary
artifact — artefact; n. 1) (in radiography) an appearance on an image reflecting a problem with the radiographic technique rather than representing the true appearance of the patient. For example, a movement artifact is blurring of the image due to movement … The new mediacal dictionary
Computed tomography — tomos (slice) and graphein (to write).Computed tomography was originally known as the EMI scan as it was developed at a research branch of EMI, a company best known today for its music and recording business. It was later known as computed axial… … Wikipedia
X-ray computed tomography — For non medical computed tomography, see Industrial CT Scanning. catSCAN redirects here. For the Transformers character, see Transformers: Universe. X ray computed tomography Intervention A patient is receiving a CT scan for cancer. Outsid … Wikipedia
Maxwell's equations — For thermodynamic relations, see Maxwell relations. Electromagnetism … Wikipedia
Anthropology and Archaeology — ▪ 2009 Introduction Anthropology Among the key developments in 2008 in the field of physical anthropology was the discovery by a large interdisciplinary team of Spanish and American scientists in northern Spain of a partial mandible (lower… … Universalium
Kilogram — Kg redirects here. For other uses, see Kg (disambiguation). Kilogram A computer generated image of the international prototype kilogram (IPK). The IPK is the kilogram. The IPK, which is roughly the size of a golf ball, sits here alongside a ruler … Wikipedia
technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… … Universalium
West Virginia Prehistory — The area now known as West Virginia was a favorite hunting ground of numerous Native American peoples before the arrival of European settlers. Many ancient man made earthen mounds from various mound builder cultures survive, especially in the… … Wikipedia