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MRI physics (diagrams)

Case contributed by Frank Gaillard
Diagnosis not applicable

Equations

Diagram

A number of important equations relating various parameters relevant to MRI physics.

Pulse sequences

Diagram

A few diagrams depicting various pulse sequences. 

MRI physics related diagrams

Diagram

Diagrams depicting the effect of material (grey) on magnetic field (blue lines), depending on the materials properties: ferromagnetism, diamagnetism, paramagnetism, and superparamagnetism.

Diagram

Flow-related enhancement is an enhancement of flowing blood seen on gradient echo pulse sequences as well as in entry slices of multslice spin echo sequences. 

Diagram

RF coils are the "antenna" of the MRI system that broadcasts the RF signal to the patient and/or receives the return signal. RF coils can be receive-only, in which case the body coil is used as a transmitter; or transmit and receive (transceiver).

Case Discussion

Some of these diagrams are based on those of Ray Ballinger of MRItutor.org who kindly donated their content to Radiopaedia.org in 2013. 

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