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Negative oral contrast such as pineapple juice, [1] date syrup, ferumoxsil, Açaí juice and water are useful in decreasing T2 signal intensity, thus minimising signals from stomach and duodenum from interfering with signals from the biliary system. [6] MRCP makes use of heavily T2-weighted MRI pulse sequences.
Computed Tomography: Non-contrast and contrast-enhanced CT may demonstrate dilation of both ducts and identify an underlying mass in the pancreas or ampulla, if present. Magnetic Resonance Cholangiopancreatography (MRCP): Non-invasive procedure, that clearly shows dilated CBD and MPD and may help pinpoint the obstruction site.
MRI contrast agents may be administered by injection into the blood stream or orally, depending on the subject of interest. Oral administration is well suited to gastrointestinal tract scans, while intravascular administration proves more useful for most other scans. MRI contrast agents can be classified [2] by their: Chemical composition
ERCP can be performed for diagnostic and therapeutic reasons, although the development of safer and relatively non-invasive investigations such as magnetic resonance cholangiopancreatography (MRCP) and endoscopic ultrasound has meant that ERCP is now rarely performed without therapeutic intent. [2]
MRCP may be: . Magnetic resonance cholangiopancreatography, in medical imaging, a technique to visualise the biliary tract and pancreatic ducts.; Membership of the Royal Colleges of Physicians of the United Kingdom, a postgraduate medical diploma run by the Federation of the Medical Royal Colleges of the United Kingdom
This is accomplished by the insertion of a thin needle into the liver carrying a contrast medium to help to see blockage in liver and bile ducts. Endoscopic retrograde cholangiopancreatography (ERCP). Although this is a form of imaging, it is both diagnostic and therapeutic, and is often classified with surgeries rather than with imaging.
A radiopaque cholegraphic (contrast) agent, usually iopanoic acid (Telepaque) or its sodium or calcium salt, [2] is orally administered, which is absorbed by the intestine. This excreted material will collect in the gallbladder, where reabsorption of water concentrates the excreted contrast.
MR: medical representative mental retardation mitral regurgitation modified release (compare time release technology (medicine)) menstrual regulation (unsafe abortion) MRA: magnetic resonance angiography: MRCP: magnetic resonance cholangiopancreatography: MRG: murmurs, rubs, and gallops (see heart sounds) MRI: magnetic resonance imaging: MRSA