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Pulse Oximetry
The mouse tail/ankle fiber optic sensor is shown above attached to the ankle of a black
mouse. The sensor head holding the two fibers simply has a hole where the tail or
ankle can be inserted. Note that the form does not apply pressure to the attachment
site, so oximetry signals tend to be robust. In addition, the ankle and/or tail do not
require shaving.
When attaching the sensor to the ankle, place a loop of thread around the mouse foot.
Use the thread to pull the leg into the sensor form. Tape the thread to one of the fibers
to keep the ankle in the sensor form.
PC-sam main display
The PC-sam main display is shown on the next page with ECG, pulse oximetry,
respiration and temperature measurements. In this case, data was being collected for
retrospective cardiac and respiratory gating of a black mouse in a 9.4T horizontal bore
MR scanner. The animal's temperature was being regulated with a set point of 37 ºC.
In the Gating window, ECG was selected so that a white dot in the Cardio Sweep
display would indicate the detection of the R-wave. Plet Gate was selected to display
as a red dot, by clicking on the label next to the red Cardio Sweep icon.
Revision C, August 2013
11-5
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