radiopaque

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Related to radio-opaque: radiolucent, radiopaque, radiopacity

radiopaque

 
obstructing the passage of radiant energy, such as x-rays, the representative areas appearing light or white on the exposed film.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ra·di·o·paque

(rā'dē-ō-pāk'),
Exhibiting relative opacity to, or impenetrability by, x-rays or any other form of radiation. Compare: radiolucent.
Synonym(s): radiodense
[radio- + Fr. opaque fr. L. opacus, shady]
Farlex Partner Medical Dictionary © Farlex 2012

radiopaque

(rā′dē-ō-pāk′)
adj.
Not allowing the passage of x-rays or other radiation.

ra′di·o·pac′i·ty (-ō-păs′ĭ-tē) n.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

radiopaque

adjective Referring to a material or tissue that blocks passage of X-rays, and has a bone or near-bone density; radiopaque structures are white or nearly white on conventional X-rays.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

radiopaque

adjective Referring to a material or tissue that blocks passage of x-rays, and has a bone or near bone density; radiopaque structures are white or near white on conventional x-rays. Cf Radiolucent.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

ra·di·o·paque

(rā'dē-ō-pāk')
Exhibiting relative opacity to, or impenetrability by, x-rays or any other form of radiation.
Compare: radiolucent
Synonym(s): radiodense.
[radio- + Fr. opaque fr. L. opacus, shady]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

radiopaque

Offering major resistance to the passage of X-rays. Radiopaque substances, such as barium sulphate and iodine-containing liquids, are commonly used to outline hollow structures, especially in the intestinal canal and the urinary system. See also BARIUM MEAL and intravenous or retrograde UROGRAPHY.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

ra·di·o·paque

(rā'dē-ō-pāk')
Exhibiting relative opacity to, or impenetrability by, x-rays or any other form of radiation.
Compare: radiolucent
[radio- + Fr. opaque fr. L. opacus, shady]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
The most important radiological signs are typical dense rim with a pale core in oval, round, or rectangular shadows, "coin-end-on" appearance of the shadows, wide mobility of radio-opaque shadows in relation to the fixed structures in successive plain radiographs of the abdomen, and wide separation in one with closeting together in other radiographs.
Common features of a gossypiboma on plain X-ray, ultrasound and CT scan[15] X-ray Radio-opaque mass Radio-opaque string-like appearance Calcified mass Mottled or sieve-like mass (may also be mistaken for faecal matter) Features of intestinal obstruction such as dilated loops of bowel, air fluid levels and a paucity of air in the rectum Ultrasound Encapsulated complex cystic mass Solid mass--hypoechoeic and heterogenous with dense acoustic shadows CT scan Thick-walled enhancing mass Fluid and air bubbles trapped within the mass A foreign metallic body may be seen within the mass (radio-opaque marker) Calcified mass Spongiform mass Fat stranding
Computed tomography showed gallbladder opacification with very dense radio-opaque material within the gallbladder lumen.
All surgical textiles used intra-operatively are impregnated with a radio-opaque marker for easy identification on plain X-ray.
There he devised the first radiographic demonstration of the gall bladder, using iodine-labelled phenolphthalein, which is excreted in the bile and is also radio-opaque. Until ultrasonography, it was the standard method of X-raying the gall bladder.
The bladder is then filled with radio-opaque contrast fluid that will show up on X-ray studies, generally using a live-action "fluoroscopy" image that allows the radiologist to periodically scan the bladder and kidneys, saving images when there is a finding of interest.
Radiographs of the thoracolumbar spine region demonstrated the presence of multiple radio-opaque horizontal lines along the vertebral bodies of both the lower thoracic and most of the lumbar spinal segments (please see Figure 2).
This is traditionally done by injecting a radio-opaque contrast agent into the blood vessel and imaging using x-ray based techniques such as fluoroscopy.
By the 1930s, X-ray visualisation of nearly all organ systems was possible with the use of barium salts and a variety of radio-opaque materials.
Abdominal ultrasound and X-Ray KUB revealed a radio-opaque shadow consistent with a stone around a Copper T in bladder area.
Osteopoikilosis can be diagnosed using a plain radiograph through the identification of multiple, variably shaped and sized radio-opaque spots clustered around joints and scattered throughout the skeleton.
Prior to the reflexology interventions, participants ingested three distinctive sets of 20 radio-opaque markers on three consecutive days.