A mathematical function used for signal fitting (filtering) of raw data. Other commonly used line shapes are the Gaussian line shape or the super-Lorentzian line shape.

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.

Parts of the body, which extend beyond the Field of view in the phase encoding direction may still be visible in the image as artifacts.
Please note that aliasing in the frequency direction is also possible but can be eliminated in the same manner or by applying frequency specific filters to the received signal.

See Aliasing Artifact.

MR imaging technique in which a set of projection profiles of the body is obtained by observing MR signals in the presence of a suitable corresponding set of magnetic field gradients. Images can then be reconstructed using techniques analogous to those used in conventional computed tomography (CT), such as filtered back projection. It can be used for volume imaging or, with plane selection techniques, for sequential plane imaging.

Radio frequency shielding includes the construction of enclosures for the purpose of reducing the transmission of electric or magnetic fields from one space to another (Faraday cage, Faraday shield). Electrically conducted shielding is designed to isolate MRI systems from its environment at the resonant frequencies.
All electronic and computer systems radiate certain frequencies of radio and magnetic waves. They can interfere with other equipment in the vicinity. Magnetic shielding enclosures are used to reduce the levels of RF radiation that enters or leaves the shielded room.
Copper shielding enclosures are designed to filter a range of frequencies under specified conditions. One of the characteristics of copper is its high electrical conductivity. Also its other physical properties like ductility, malleability, and ease of soldering, make it an ideal material for radio frequency shielding. Sheet copper can be formed into any shape and size, and electrically connected to a grounding system to provide an effective RF shielding.

See also MRI Safety