navigator echo

navigator echo

a method of respiratory gating which see, used in magnetic resonance imaging to limit respiratory motion artifact; a signal is derived from the top of the diaphragm, and image data are collected only when it is in a selected range.

nav·i·ga·tor ech·o

(nav'i-gā'tŏr ek'ō)
A method of respiratory gating used in magnetic resonance imaging to limit respiratory motionartifact; a signal is derived from the top of the diaphragm, and image data are collected only when it is in a selected range.
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References in periodicals archive ?
The DWI protocol can be used with a variety of MRI pulse sequences, including fast spin echo single shot, high-speed STEAM (stimulated echo acquisition mode) imaging, incoherent gradient echo, magnetization prepared rapid gradient echo, echo-planar imaging and navigator echo.
The navigator echo can be added to any pulse sequence to decrease motion artifact.
Navigator echo is a standard spin echo sequence that can be used with any of the pulse sequences previously described to decrease motion artifact.