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MRI CO2 (ETCO2) and O2 Respiratory Gas Analysis

Record end tidal carbon dioxide (ETCO2), volume of oxygen consumed (VO2), volume of carbon dioxide produced (VCO2), and Respiratory Exchange Ratio (RER) inside the MRI with the CO2100C carbon dioxide module and O2100C oxygen module.

The CO2100C and O2100C respiratory gas analysis modules interface with longer lengths of gas sampling tubing to give breath-by-breath values from a subject inside the MRI. The gas analysis modules have internal pumps that compensate for the additional length of tubing that is required to interface between the control room and the chamber. By increasing the pump speed, the units can handle the extra length of the tubing to provide real-time values for percentage of O2 and CO2.

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  • Use AFT31-MRI to extend the AFT20 gas line interface between the AFT22 non-rebreathing T-valve and the O2100C and CO2100C respiratory gas analysis modules; the AFT31-MRI is 10 meters of 3.175 mm ID tubing with male and female Luer locks and a “Y” connector.
  • Use a TSD117-MRI pneumotach airflow transducer with the gas analysis modules with and AcqKnowledge software can provide a breath-by-breath analysis of ETCO2, VO2, VCO2, and RER.

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