Investigation of Photoplethysmographic Signals in Human Visceral Organs
Kyriacou, P. A., Crerar-Gilbert, A., Langford, R. M. & Jones, D. P. (2001). Investigation of Photoplethysmographic Signals in Human Visceral Organs. In: Proceedings of the IX Mediterranean Conference on Medical and Biological Engineering and Computing (MEDICON 2001). IX Mediterranean Conference on Medical and Biological Engineering and Computing (MEDICON 2001), 12-14 Jun 2001, Pula, Croatia.
Abstract
There is a need for reliable continuous monitoring of visceral organ oxygen saturation (SpO2). Splanchnic ischaemia may ultimately lead to cellular hypoxia and necrosis and may well contribute to the development of multiple organ failures and increased mortality. A new reflectance photoplethysmographic (PPG) probe and signal processing system were developed. PPG signals from abdominal organs (bowel, liver, and kidney) and the finger were obtained from 12 anaesthetised patients. The amplitudes of the abdominal organ PPGs were, on average, approximately the same as those obtained simultaneously from the finger. These observations suggest that pulse oximetry may be a valid monitoring technique for abdominal organs such as the bowel liver and kidney.
| Publication Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | R Medicine > RC Internal medicine T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Departments: | School of Science & Technology > Engineering |
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