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Cardiac čacing based on intracardiac flow measurement (CROSBI ID 344875)

Ocjenski rad | doktorska disertacija

Ferek-Petrić, Božidar Cardiac čacing based on intracardiac flow measurement / Tonković, Stanko (mentor); Zagreb, Fakultet elektrotehnike i računarstva, . 2005

Podaci o odgovornosti

Ferek-Petrić, Božidar

Tonković, Stanko

engleski

Cardiac čacing based on intracardiac flow measurement

The idea to use the diastolic filling waves for cardiac pacing control has been committed upon defining the relations between A-V interval of cardiac pacing and diastolic filling waveform. Different applications will require different accuracy of diastolic function measurement. Some of them will require very long-term measurement and parameters follow-up such as heart failure monitoring. This implies that some clinical applications will require calibrated and stabile sensor. It has been proven that ultrasonic Doppler flow measurement method is feasible from energy consumption view for implantable devices. First of all, specially designed cardiac lead comprising low loss HF cable is an obligatory component of that system. Novel ultrasound transducer materials has been investigated for this application. Electrochemical sensor doesn't consume energy at all and the processing circuits are very simple. It could be designed in two different ways: - amplifier within the pacemaker and flow sensing electrode on the leads and - sensor capsule with electrodes and preamplifier mounted fixed on the lead. In order to pertinently study both sensors - ultrasonic and electrochemical, the experimental lead has to be designed, comprising both sensors adjacent to each other, for chronic animal study.

cardiac pacing; flow measurement; rate responsive pacing

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Podaci o izdanju

145

02.11.2005.

obranjeno

Podaci o ustanovi koja je dodijelila akademski stupanj

Fakultet elektrotehnike i računarstva

Zagreb

Povezanost rada

Elektrotehnika