title: Physiological parameter monitoring from optical recordings with a mobile phone.
abstract: We show that a mobile phone can serve as an accurate monitor for several physiological variables, based on its ability to record and analyze the varying color signals of a fingertip placed in contact with its optical sensor. We confirm the accuracy of measurements of breathing rate, cardiac R-R intervals, and blood oxygen saturation, by comparisons to standard methods for making such measurements (respiration belts, ECGs, and pulse-oximeters, respectively). Measurement of respiratory rate uses a previously reported algorithm developed for use with a pulse-oximeter, based on amplitude and frequency modulation sequences within the light signal. We note that this technology can also be used with recently developed algorithms for detection of atrial fibrillation or blood loss.
authors.affiliation: Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01607, USA. scullycg@wpi.edu
authors.forename: Christopher G
authors.initials: CG
authors.lastname: Scully
authors.forename: Jinseok
authors.initials: J
authors.lastname: Lee
authors.forename: Joseph
authors.initials: J
authors.lastname: Meyer
authors.forename: Alexander M
authors.initials: AM
authors.lastname: Gorbach
authors.forename: Domhnull
authors.initials: D
authors.lastname: Granquist-Fraser
authors.forename: Yitzhak
authors.initials: Y
authors.lastname: Mendelson
authors.forename: Ki H
authors.initials: KH
authors.lastname: Chon
mesh_terms: D000465:Algorithms; D040421:Cell Phone; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008991:Monitoring, Physiologic / Q000295:instrumentation* / Q000379:methods; D010092:Oximetry / Q000295:instrumentation; D058998:Remote Sensing Technology / Q000295:instrumentation*; D056152:Respiratory Rate / Q000502:physiology; D012815:Signal Processing, Computer-Assisted