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Pressure Pad / Respiration Trans. for MRI

Transducer for MRI Applications

Record responses in the MRI

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Pressure Pad / Respiration Trans. for MRI
Part #: TSD110-MRI

The MR Safe Pressure Pad/Respiration Transducer (TSD110-MRI) requires no electrical connections inside the chamber and works on a number of body locations. The multipurpose assembly can be used to measure:

  1. Pulse when placed on a major pulse point
  2. Noninvasive respiration for animals (see TSD221-MRI for human respiration)
  3. Small pressing forces (like pinching fingers) for Parkinson’s evaluations
  4. Human facial expressions (smiling, frowning, etc.)
  5. Measure swallowing (deglutition)
  6. Spacing and pressure between teeth coming together
  7. Startle blink response

The TSD110-MRI consists of a differential pressure transducer (TSD160B ±12.5 cm H2O), sensor (RX110-MRI; affix with TAPE1), and tubing (two AFT30-XL), and interfaces to an MP160/150 with DA100C amplifier. The differential pressure transducer is located in the Control room and the tubing passes through the waveguide to the sensor in the Chamber room.

MRI Use: MR Safe (see Specifications for components)

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MRI Pressure Pad/Respiration Transducer
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Part #: TSD110-MRI
Categories: MRI Magnetic Resonance Imaging - Research
Subcategories: Transducers - Research

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The AFT30-XL tubing will add a delay of less than 50 msec to the sensing of the waveform peak.

Respiration

  • Animals: For high-quality respiration signals, place an anesthetized animal on the sensor pad and run the tubing to the pressure transducer on the DA100C amp.
  • Not recommended for human respiration in the MRI; see TSD221-MRI for human respiration.

Finger Tap Response

  • Mount the pressure pad/respiration transducer in the scanner so that the subject can tap it to respond (monotonically variable or ON/OFF) to a stimulus. Use multiple transducers for complex applications.
Pulse and pulse raterecord the pulsewaveform
  • To record the pulse waveform, position the transducer around the tip of the finger or over one of the major pulse points (such as the carotid or radial arteries).

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Measuring Swallowing/Deglutition with BIOPAC

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