caa a22 4500 465825591 CHVBK 20180323112148.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF02832184 doi (NATIONALLICENCE)springer-10.1007/BF02832184 A low-cost, high-fidelity fm wireless precordial radiostethoscope for continuous monitoring of heart and breath sounds [Elektronische Daten] [Alan Mizutani, George Ozaki, Jonathan Benumof] We constructed and tested an inexpensive (less than S50) FM wireless, acoustically shielded, precordial radiostethoscope that enables the anesthetist to follow the heart tones and breath sounds of the patient regardless of the anesthetist's location in the operating room. We compared our acoustically shielded device with a similar, but acoustically unshielded, commercially available device. We found the sound quality of our radiostethoscope to be superior to that of the commercial device; the signal-to-noise ratio of our device was 7.6 for heart tones and 8.4 for breath sounds, whereas the commercial device had a signal-to-noise ratio of 2.7 and 3.9 for heart tones and breath sounds, respectively. Our device offers all of the advantages of a radiostethoscope and has the added advantages of low cost and high fidelity. Little, Brown and Company, 1990 Equipment nationallicence precordial stethoscope nationallicence stethoscopy nationallicence Mizutani Alan Department of Anesthesiology, UCSD Medical Center, 225 Dickinson St, 92103, San Diego, CA aut Ozaki George Department of Anesthesiology, UCSD Medical Center, 225 Dickinson St, 92103, San Diego, CA aut Benumof Jonathan Department of Anesthesiology, UCSD Medical Center, 225 Dickinson St, 92103, San Diego, CA aut Journal of Clinical Monitoring Springer Netherlands 6/1(1990-01-01), 61-64 0748-1977 6:1<61 1990 6 10877 https://doi.org/10.1007/BF02832184 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02832184 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mizutani Alan Department of Anesthesiology, UCSD Medical Center, 225 Dickinson St, 92103, San Diego, CA aut NATIONALLICENCE 700 1- Ozaki George Department of Anesthesiology, UCSD Medical Center, 225 Dickinson St, 92103, San Diego, CA aut NATIONALLICENCE 700 1- Benumof Jonathan Department of Anesthesiology, UCSD Medical Center, 225 Dickinson St, 92103, San Diego, CA aut NATIONALLICENCE 773 0- Journal of Clinical Monitoring Springer Netherlands 6/1(1990-01-01), 61-64 0748-1977 6:1<61 1990 6 10877 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer