A multi-channel acoustics monitor for perioperative respiratory monitoring: preliminary data.

Jafarian, Kamal; Amineslami, Majid; Hassani, Kamran; Navidbakhsh, Mahdi; Lahiji, Mohammad; Doyle, D.; Lahiji, Mohammad Niakan; Doyle, D John

This study pertains to a six-channel acoustic monitoring system for use in patient monitoring during or after surgery. The base hardware consists of a USB data acquisition system, a custom-built six-channel amplification system, and a series of microphones of various designs. The software is based on the MATLAB platform with data acquisition drivers installed. The displayed information includes: time domain signals, frequency domain signals, and tools to aid in the detection of endobronchial intubation. We hypothesize that the above mentioned arrangement may be helpful to the anesthesiologist in recognizing clinical conditions like wheezing, bronchospasm, endobronchial intubation, and apnea. The study also evaluated various types of microphone designs used to transduce breath sounds. The system also features selectable band-pass filtering using MATLAB algorithms as well as a collection of recordings obtained with the system to establish what respiratory acoustic signals look like under various conditions.

VENTILATION monitoring; PATIENT monitoring; HEART rate monitoring; OBSTRUCTIVE lung diseases; WORLD Health Organization; COMPUTER-aided diagnosis; INFORMATION display systems; INTRAOPERATIVE monitoring; RESEARCH evaluation; PULMONARY function tests; SOUND; USER interfaces; PILOT projects; SOUND spectrography; HEART auscultation; PERIOPERATIVE care; EQUIPMENT & supplies

Journal of Clinical Monitoring & Computing, 2016, Vol 30, Issue 1, p107

1387-1307

Academic Journal

10.1007/s10877-015-9693-8