Diagnosis of cerebral metastases: double-dose delayed CT ... For patients suspected of having cerebral metastases, double-dose delayed CT (DDD-CT) has proved significantly more sensitive than CT scans obtained immediately after administration of a lesser dose of iodinated contrast material. Previous reports confirm the advantages of postcontrast MR imaging over contrast-enhanced CT, but data comparing DDD-CT and contrast-enhanced MR have not been reported. double bubble map - dvusd Created Date: 1/13/2003 9:27:29 AM Ravelry: Contrast Sweater pattern by PetiteKnit The Contrast Sweater is worked top-down seamlessly. The neck ribbing is folded over and seamed on the inside at the end - this is the only finishing required in addition to weaving in the ends. Short rows are used to shape the neck opening. The yoke is worked in three steps with three different increase techniques. The sleeves are worked in the round on double pointed needles or using the ...    Read More

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  • Vision, Double - Eye Disorders - Merck Manuals Consumer ...

    Monocular double vision can occur when something distorts light transmission through the eye to the retina (the light-sensing structure at the back of the eye). There may be more than two images. One of the images is of normal quality (for example, in brightness, contrast, and clarity). The other image or images are of inferior quality.

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    Jan 17, 2008· Page 2 of 2 - Double stacking and contrast - posted in Solar Observing and Imaging: It stands to reason, as everyone will probably agree, that the increased contrast from a narrower bandpass is due mainly to less continuum off-band contamination of the image. Conversely, the wider the bandpass, the more photospheric light makes it through on the "wings" of the Ha line.I have been .

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  • CRC Screening With Double-Contrast Barium Enema

    CRC Screening With Double-Contrast Barium Enema. Objectives: This study examined diagnostic radiologists' colorectal cancer (CRC) screening activities and beliefs about screening effectiveness and future capacity for screening with double-contrast barium enema (DCBE), and compares radiologists' opinions about CRC screening with those of primary care physicians.

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  • Definition of double-contrast barium enema - NCI ...

    double-contrast barium enema listen (DUH-bul-KON-trast BAYR-ee-um EH-neh-muh) A procedure in which x-rays of the colon and rectum are taken after a liquid containing barium is put into the rectum. Barium is a silver-white metallic compound that outlines the colon and rectum on an x-ray and helps show abnormalities.

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    Positive contrast gastrointestinal (GI) studies are performed to help diagnose suspected GI disease after a negative or questionable preliminary radiographic examination. GI contrast studies can be difficult to interpret, so to increase the probability of an accurate diagnosis, it is important to ...

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  • Contrast Radiography - Revision Guide For Student Nurses ...

    What is meant by double contrast radiography? Why are heavy sedation or general anaesthesia contraindicated in the case of a "barium swallow"? Prior to a gastrogram, the patient may be given glucagon. Why? List 6 conditions that may indicate the need for a barium series. Name 2 contrast agents commonly used in myelography.

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  • US7623903B2 - Double contrast technique for MRI-guided ...

    A method to detect the location of a catheter relative to a targeted location in a blood vessel is provided. One example method includes acquiring and displaying magnetic resonance (MR) images while a first MR contrast agent is present and while the operation of that first MR contrast agent is counter-acted by a second MR contrast agent.

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  • Double contrast and colonoscopy in polyp detection

    double contrast enema and 373 by colonoscopy (Table 1). Thirty-nine polyps missed at double contrast enemawere detected at colonoscopy, while 37 polyps missed at colonoscopy were detected at double contrast enema. Thirty-five of these were verified at double contrast enema on two or more occasions andtwopolypsweredetected at follow-up ...

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  • What does contrast mean? definition, meaning and ...

    Dictionary entry overview: What does contrast mean? • CONTRAST (noun) The noun CONTRAST has 5 senses:. 1. the opposition or dissimilarity of things that are compared 2. the act of distinguishing by comparing differences 3. a conceptual separation or distinction 4. the perceptual effect of the juxtaposition of very different colors 5. the range of optical density and tone on a photographic ...

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    Creates a new instance of ColorAdjust with default parameters. ColorAdjust (double hue, double saturation, double brightness, double contrast) Creates a new instance of ColorAdjust with the specified hue, saturation, brightness, and contrast.

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  • Double Bubble Map | Editable Compare & Contrast Diagram ...

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  • Two Modes of Motion Perception: A Double-dissociation of ...

    Two Modes of Motion Perception: A Double-dissociation of the effects of contrast and field of view on perception of object-motion and self-motion You will receive an email whenever this article is corrected, updated, or cited in the literature.

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    Options for accessing this content: If you are a society or association member and require assistance with obtaining online access instructions please contact our Journal Customer Services team.

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  • double contrast | Encyclopedia

    double contrast n. a technique usually used in X-ray examinations of the bowel, to enhance the quality of the image. Barium sulphate contrast medium is used to coat the bowel wall; the bowel is then distended with gas. Source for information on double contrast: A Dictionary of Nursing dictionary.

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  • Why is a double-contrast barium enema exam important in ...

    Double-contrast barium enema examination is a valuable technique for diagnosing ulcerative colitis and Crohn disease, even in patients with early disease, because of its ability to depict fine ...

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  • comparison double-contrast bariummeal in acute upper

    double-contrast radiology in 53 consecutive patients admitted with acute gastrointestinal haemorrhage. The bleeding site was correctly identified by endoscopy in 940 of patients and the final diagnosis was correctly given in 890,. Thecorresponding figures with radiology were 830( and 74%0.

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  • Compare And Contrast Two Different Native American Tribes ...

    COWBOYS AND INDIANS: COMPARE/CONTRAST 1 Cowboys and Indians: Compare/Contrast Hayley Leinstock Endeavor Charter School COWBOYS AND INDIANS: COMPARE/CONTRAST 2 The Wild West, otherwise known as the Old West, was a unique period in American history. Pop culture has turned much of the true West into legend.

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  • US7996062B2 - Double-contrast technique for MRI-guided ...

    Replacement of the H-spins in the defined region of the blood vessel lumen by CO 2 results in a signal loss on MRI images and, thus, CO 2 is a very distinctive contrast agent. CO 2 is rapidly cleared from the blood making it an especially useful contrast agent for repeated confirmation of catheter position.

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  • Residency Competency Evaluation: Double Contrast Upper ...

    Number of double contrast UGIs performed:_____ Average fluoroscopy time: _____ ATENDING EVALUATION Appropriate use of intravenous glucagon MK1 Appropriate use of barium . MK1. Appropriate images obtained to answer the clinical question . PCTS2 Projections Distension Coating Reasonable fluoroscopy time

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  • Veterinary Imaging Associates

    Another variation is a double contrast gastric study, which is achieved after a small volume of liquid barium has been administered, the animal is then rotated to ensure the barium coats the gastric mucosa. This is followed by air inflation of the stomach to achieve a double contrast effect. Liquid iodine positive contrast studies:

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  • Contrast media | Radiology Key

    This was achieved by linking together two conventional ionic contrast media molecules. The resulting dimeric ionic contrast medium was an improvement on the HOCM. Reduced osmolality (600 mOsm/kg H 2 O) made the contrast more tolerable for patients. The ionic molecule still dissociates into two particles, a positive cation and a negative anion.

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  • Single-contrast vs double-contrast barium enema in the ...

    Radiographic and colonoscopic correlation in 139 patients with 234 colonic polyps compared the sensitivity of single- and double-contrast barium enema. Single-contrast barium enema detected 68 .

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