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| | | 'Negative Oral Contrast Agents' | |
Result : Searchterm 'Negative Oral Contrast Agents' found in 1 term [] and 6 definitions [], (+ 5 Boolean[] results
| previous 6 - 10 (of 12) nextResult Pages : [1] [2] [3] | | | | Searchterm 'Negative Oral Contrast Agents' was also found in the following service: | | | | |
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Drug Information and Specification NAME OF COMPOUND Barium suspensions, clay mineral particles, iron oxide crystals CENTRAL MOIETY Ba3+, Al3+, Si2+, Fe T2, Predominantly negative enhancement CONCENTRATION Various mixtures DOSAGE Depending on the mixture PREPARATION Depending on the product INDICATION Gastrointestinal bowel marking DEVELOPMENT STAGE No clinical development DO NOT RELY ON THE INFORMATION PROVIDED HERE, THEY ARE NOT A SUBSTITUTE FOR THE ACCOMPANYING PACKAGE INSERT! | | | | • View the DATABASE results for 'Oral Magnetic Particles' (4).
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| | | | • View the DATABASE results for 'Combination Oral Contrast Agents' (3).
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| | | Searchterm 'Negative Oral Contrast Agents' was also found in the following service: | | | | |
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Diamagnetism occurs only by a substance in the presence of an externally applied magnetic field. Diamagnetic contrast agents are complexes in which the metal ion (e.g., Zn, Bi and Ca) is diamagnetic.
Potential diamagnetic materials in gastrointestinal MRI:
A suspension of clay minerals (Kaopectate with kaolin, a common over the counter drug) can be used as a negative oral contrast agent caused by the diamagnetic properties.
By using this preparation as a gastrointestinal contrast agent e.g., in pancreas MRI or MRCP, the absence of signal is clearly visible in the stomach and duodenum.
Barium sulfate commonly used as an X-ray contrast agent has also been tested for use in abdominal imaging. The diamagnetic properties of the barium particles are caused by a susceptibility effect around them, the resulting signal loss is strengthening by a replacement of water protons with barium.
See also Diamagnetism. | | | | • View the DATABASE results for 'Gastrointestinal Diamagnetic Contrast Agents' (7).
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Ferristene is a superparamagnetic agent that has been used as a magnetic iron particle solution for gastrointestinal use as a negative contrast agent with 23.4 Fe/200ml required concentration.
See also Abdoscan®, Oral Contrast Agents.
| | | | • View the DATABASE results for 'Ferristene' (3).
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