title: Development of Portable, Wireless and Smartphone Controllable Near-Infrared Spectroscopy System.
abstract: We have developed portable near-infrared tissue oxygenation monitoring systems, called the "PocketNIRS Duo" and the "PocketNIRS HM", which features wireless data communication and a sampling rate of up to 60 data readings per second. The systems can be controlled by smartphone or personal computer. We demonstrate the efficacy of the systems for monitoring changes in brain and arm muscle hemodynamics and oxygenation in breath-holding and cuff-occlusion tests, respectively.Our systems should prove to be useful as an oxygenation monitor not only in research but also in healthcare applications.
authors.affiliation: Optical Diagnostic Technology Group, Development Center, Hamamatsu Photonics K.K., Hamamatsu, Japan. tk-wat@crl.hpk.co.jp.
authors.forename: Takashi
authors.initials: T
authors.lastname: Watanabe
authors.affiliation: Optical Diagnostic Technology Group, Development Center, Hamamatsu Photonics K.K., Hamamatsu, Japan.
authors.forename: Rui
authors.initials: R
authors.lastname: Sekine
authors.affiliation: DynaSense Inc., Hamamatsu, Japan.
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Mizuno
authors.affiliation: Development Center, Hamamatsu Photonics K.K., Hamamatsu, Japan.
authors.forename: Mitsuharu
authors.initials: M
authors.lastname: Miwa
mesh_terms: D015415:Biomarkers / Q000097:blood; D001921:Brain / Q000098:blood supply*; D062485:Breath Holding; D002560:Cerebrovascular Circulation; D006439:Hemodynamics; D006801:Humans; D008422:Materials Testing; D063731:Mobile Applications; D018482:Muscle, Skeletal / Q000098:blood supply*; D010092:Oximetry / Q000379:methods*; D010100:Oxygen / Q000097:blood*; D010108:Oxyhemoglobins / Q000378:metabolism; D000068997:Smartphone; D012985:Software Design; D019265:Spectroscopy, Near-Infrared / Q000295:instrumentation*; D013997:Time Factors; D034941:Upper Extremity; D059015:Wireless Technology
chemical_list: D015415:Biomarkers; D010108:Oxyhemoglobins; D010100:Oxygen
keywords: High sampling rate; Near-infrared spectroscopy (NIRS); Oxygenation; Portable; Wireless