Center for Functional MRI In the Department of Radiology

Physiological Monitoring System

  • What are the available options on the 3Ts at CFMRI for physiological monitoring?
We currently have two available physiological monitoring systems on the 3T scanners:   a Labview-based BIOPAC Patient Monitoring System and a GE Built-in System.  The table below compares the functionality of the two systems.

  Labview-based BIOPAC System GE Built-in System
Capabilities Pulse
Respiratory effort
End-tidal CO2
Respiratory effort
Setup Time 5 min (easy) 2 min (very easy)
Recording file type One text file per scan, or
One text file per session
One text file per scan
Recording length Unlimited (but limited by the memory size and hard disk space of the computer) 25 minutes per recording
Post Processing files Physio (Matlab) PhysioGE (Matlab)

  • How do I do physiological monitoring on the 3Ts?
    Labview-based :   Operator's Manual [PDF]
    GE build-in: Operator's Manual [PDF]

  • How do I remove physiological noise from fMRI data?
     Labview-based :  Instructions [PDF],      
                                    Download physio.tar
    GE build-in:           Instructions [PDF]
                                    Download physioGE.tar

  • Where do I purchase BIOPAC transducers and other supplies?

  • The following supplies are not provided by CFMRI. Groups who need them can purchase from the following vendors:
    Product Name: Pulse Plethysmogram Transducer
    Product ID: TSD 200

    Product Name: Respiratory Effort Transducer
    Product ID: TSD 201

    Product Name: Adult Nasal CO2 Sampling Cannula
    Product ID: 4007 (male Luer connector with filter)
    Note: SalterLab also sells pediatric and infant nasal CO2 cannulas.