This is the point of penetration by the MR system cables into the RF room. This panel contains filters and other connections required to provide communication between the scan room and the rest of the system without allowing interference to pass.

(PBP) A percentage of baselines at peak image can be reconstructed for a slice by perfusion imaging. The gray scale displays the signal-change relative to a basic image prior to contrast agent administration.

Short name: PFOB (C8F17Br), generic name: Perfluoroctylbromide.
Perflubron® is a negative oral contrast agent consisting of perfluorochemicals used in MRI scans to darken the bowel. In gastrointestinal MR imaging the differentiation between intestines, adjacent structures and pathologic masses are improved.
Not commercially available in Canada.

See also Classifications, Characteristics, etc.

Perfluorochemicals are fluorinated organic compounds. Perfluorochemicals can be used in gastrointestinal imaging as a negative contrast agent to reduce signal in the intestine. The MRI signal reduction is caused by the absence of mobile protons.
Perfluoroctylbromide (PFOB)(C8F17Br) is suitable for gastrointestinal use in humans; perfluorononane has been tested in animal models. PFOB is commercially available as Perflubron® (Imagent GI, Alliance). Benefits of this type of contrast media are biologically inertia, immiscibility with water, and a fast transit through the small intestine caused by low surface tension.
Fluosol-DA, a perfluorochemical emulsion has been tested in mice as a tumor specific agent for 19F-MRI.

See also Classifications, Characteristics, etc.

Any molecule used to measure organ perfusion in conjunction with imaging.
Characteristics of good perfusion agents:
Perfusion agents used in MRI are small Gd-chelates (they do not cross blood brain barrier, but extravasate quickly into extracellular space in other organs) and SPIOS.