radiopacity


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Related to radiopacity: radiopaque, radiolucency

radiopacity

 [ra″de-o-pas´ĭ-te]
the quality or property of being radiopaque.

ra·di·o·pac·i·ty

(rā'dē-ō-pas'i-tē),
The x-ray shadow of a radiopaque object.
Synonym(s): radiodensity

radiopacity

/ra·di·opac·i·ty/ (-pas´ĭ-te) the quality or property of obstructing the passage of radiant energy, such as x-rays, the representative areas appearing light or white on the exposed film.radiopaque´

radiopacity

[-pas′itē]
Etymology: L, radiare, to emit rays, opacus, obscure
the ability to stop or reduce the passage of x-rays. Bones have relative radiopacity and therefore display as white areas on an exposed x-ray film. Lead has marked radiopacity and therefore is widely used to shield x-ray equipment and atomic power sources. Also called radiodensity. radiopaque, adj.

ra·di·o·pac·i·ty

(rā'dē-ō-pas'i-tē)
State of being radiopaque.
Synonym(s): radiodensity.

radiopacity (rāˈ·dē·ō·pasˑ·i·tē),

n the capability of a substance to hinder or completely stop the passage of x-rays, such as lead and bones, thus producing a light image on film. Also called
radiodensity.

ra·di·o·pac·i·ty

(rā'dē-ō-pas'i-tē)
X-ray shadow of a radiopaque object.

radiopacity (rā´dēōpas´itē),

n relative term referring to the considerable attenuation of a radiographic beam produced by materials of relatively high atomic number. The image on a radiograph of such materials is relatively light because less radiation passes through, which prevents the exposure of the film in that area.

radiopacity

the quality or property of obstructing the passage of radiant energy, such as x-rays, the representative areas appearing light or white on the exposed film.
References in periodicals archive ?
16) The aim of the present study was to investigate if there is a relation between the increase in radiopacity provided by bismuth oxide and the color alteration of calcium silicate-based cement.
Customization can include yarn size in terms of cross-sectional profile, ratio of co-polymers blended together to achieve desired physical and chemical integrity and percentage of radiopaque material to achieve a desired radiopacity, depending on the location of the implant in the body.
It has a strut thickness of 81 pm and exhibits high radial durability and radiopacity.
A CT scan revealed a large right maxillary antral mass, with areas of radiolucency and radiopacity, extending into the right nasal cavity and ethmoidal air cells (Fig.
The inbuilt antimicrobial protection can be combined with other practicalities, such as in catheter designs, where the antimicrobial functionality can be incorporated into a multi-layer structure including an identifying colour, radiopacity and friction reduction.
5,13,18) The radiographic signs of MO during the early stages demonstrate a fine, lacy radiopacity that later appears cloudy within a well-defined mass (Figure 2).
The metal line sign, which is a radiopacity secondary to direct visualization of the metallic debris, (7) also was not seen in our case.
Because they are inert, non-biotransformable, and of varying radiopacity, support gas exchange and can be vaporized from the lung, they provide useful diagnostic imaging.
Radiographically, it appears as a dense radiopacity with a peripheral radiolucent border.
Compressive strength, dimensional change, setting time, pH and radiopacity have been compared [Islam et al.
Ancillary signs include periapical or periradicular radiolucency or radiopacity without evidence of pulpal pathology, failure of an extraction socket to heal, generalized loss of the lamina dura, or "floating" teeth.