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An infrared device for monitoring the respiration of small rodents during magnetic resonance imaging
Author(s) -
Lemieux Susan K.,
Glover Gary H.
Publication year - 1996
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.1880060321
Subject(s) - respiratory monitoring , photoplethysmogram , reflectometry , magnetic resonance imaging , infrared , biomedical engineering , waveform , respiratory system , materials science , respiration , medicine , computer science , optics , radiology , physics , computer vision , anatomy , telecommunications , time domain , radar , filter (signal processing)
A device that uses infrared reflectometry for monitoring the respiratory waveform of small rodents during MRI was developed. This system uses a photoplethysmograph coupled to the animal by a light pipe to detect movements as small as 1.0 mm. This device can also be used for monitoring larger animals or for controlling respiratory‐compensated or respiratory‐triggered MRI.