1. Pilot Study of Emergency Department Patient Vital Signs Acquisition Using Experimental Video Photoplethysmography and Passive Infrared Thermography Devices
- Author
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Chris K. Kim, Kees Van Zon Ms, Carlin C. Chuck Scb, Ihor Olehovych Kirenko, Marek Janusz Bartula, Geoffrey A. Capraro Md Mph, Leo Kobayashi, Mukul Julius Rocque, BS Alana Oster, Derek Merck, Katherine R. Luchette Scb, and Haibo Wang
- Subjects
Core (anatomy) ,business.industry ,Computer science ,0206 medical engineering ,Vital signs ,030208 emergency & critical care medicine ,02 engineering and technology ,Emergency department ,020601 biomedical engineering ,Temperature measurement ,Triage ,03 medical and health sciences ,0302 clinical medicine ,Photoplethysmogram ,Thermography ,Nuclear medicine ,business - Abstract
Objective: Investigators conducted pilot sessions in live Emergency Department (ED) settings to prepare for formal comparative study of contact and experimental non-contact vital signs (VS) measurement devices. Methods: Contact-based cardiorespiratory monitors (CM) and video photoplethysmography (vPPG) measured heart rates (HR); contact thermometers and passive infrared thermography (pIR) obtained core and surface temperatures. Subject VS data comprised two 25-min CM and vPPG recordings (initial unprimed “Triage Check” window; four 1-min “Full Check” windows; 20min of “Resting” intervals) and temperature measurements. Results: Forty-eight of 102 approached patients participated: at least 5 subjects each in 0-12mo, 1-5y, 6-12y, 13-17y age-groups, and at least 2 subjects each in 18-29y, 30-39y, 40-49y, 50-59y, 60-69y, 70-79y, 80+y age-groups. Subjects were 40.4% female with median Fitzpatrick skin type of 3.0 (interquartile range 1-3: 2.0-5.0), ESI score of 3.0 (2.0-3.0), and core temperature of 98.6°F (97.9-99.1°F). Twelve subjects were excluded from vPPG analysis due to inadequate lighting, excessive motion, and/or datastream loss. From the remaining 36 subjects with median HR CM of 78.2bpm (69.8-94.8bpm), vPPG measured median HR vPPG of 75.0bpm (68.3-93.0bpm) from 170 (70.5%) of 241 possible Full Check windows; the median difference between HR CM and HR vPPG was 0.6bpm (-0.2-2.3bpm). All Emergency Severity Index (ESI) HR components for 34 subjects with Triage Check HR vPPG measurements matched CM-based ESI HR components. Median differences between contact and pIR temperatures ranged from −5.4°F to −4.4°F. Conclusion: vPPG and pIR devices experimentally measured select live VS with promising results. Significance: Pilot data and protocol testing set the groundwork for full-scale ED vPPG-pIR investigation.
- Published
- 2019