Impedance pneumography is a technique which allows the monitoring of respiratory activity through the measurement of variations in the impedance between two points located on the thoracic surface. In this paper, a low-cost, easily portable, and re-configurable measurement system is presented, suitable to perform impedance pneumography investigations. The system is based on a LabVIEW virtual instrument and employs only a data acquisition card. A preliminary metrological assessment of the system is performed, showing that the basic accuracy of the instrument is adequate for monitoring patients lying in a bed. Acquisitions made on several volunteers have evidenced the feasibility of the proposed system in monitoring the breath activity of a patient and in extrapolating the relevant diagnostic parameters. With the aid of suitable signal processing and hardware optimizations the instrument might become a truly portable and non-invasive breath rate monitoring system. © 2011 IEEE.
A DAQ-based virtual instrument for trans-thoracic impedance investigations / Piuzzi, Emanuele; Pisa, Stefano; Podesta', Luca; Sangiovanni, Silvia. - (2011), pp. 646-651. (Intervento presentato al convegno 2011 IEEE International Symposium on Medical Measurements and Applications, MeMeA 2011 tenutosi a Bari nel 30 May 2011 through 31 May 2011) [10.1109/memea.2011.5966663].
A DAQ-based virtual instrument for trans-thoracic impedance investigations
PIUZZI, Emanuele;PISA, Stefano;PODESTA', Luca;SANGIOVANNI, Silvia
2011
Abstract
Impedance pneumography is a technique which allows the monitoring of respiratory activity through the measurement of variations in the impedance between two points located on the thoracic surface. In this paper, a low-cost, easily portable, and re-configurable measurement system is presented, suitable to perform impedance pneumography investigations. The system is based on a LabVIEW virtual instrument and employs only a data acquisition card. A preliminary metrological assessment of the system is performed, showing that the basic accuracy of the instrument is adequate for monitoring patients lying in a bed. Acquisitions made on several volunteers have evidenced the feasibility of the proposed system in monitoring the breath activity of a patient and in extrapolating the relevant diagnostic parameters. With the aid of suitable signal processing and hardware optimizations the instrument might become a truly portable and non-invasive breath rate monitoring system. © 2011 IEEE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
