Application of Clean Unit System Platform (CUSP) for sleep diagnostics in elderly

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K15280
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: General internal medicine(including psychosomatic medicine)
• Research Institution: Nippon Medical School
• Principal Investigator: Yasutake Masahiro 日本医科大学, 大学院医学研究科, 大学院教授 (70281433)
• Co-Investigator(Renkei-kenkyūsha): ISHIBASHI Akira 北海道大学, 電子科学研究所, 教授 (30360944) ; OHARA Toshihiko 日本医科大学, 医学部, 講師 (90267146)
• Research Collaborator: HYOUDOU Hideya 日本医科大学, 医学部, 助教 (20307937) ; MATSUMURA Noriaki 日本医科大学, 医学部, 助教 (40328836) ; ONODERA Naoko 日本医科大学, 医学部, 助教 (20366751) ; TANAKA Akihiro ; WAKAKURI Hiroaki ; SUZAKI Makoto 日本医科大学, 医学部, 助教 (50714747) ; SAIGUSA Taro 日本医科大学, 医学部, 助教 (70740520)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 睡眠診断 / クリーン環境 / 生体情報 / 非侵襲 / 非接触 / kinetosomnogram

Outline of Final Research Achievements

We recently proposed a novel Clean Unit System Platform (CUSP) to establish a dust-/microbe-free environment for various purposes. Tent-type CUSP enables us to detect fluctuation of air-borne particles as bio-kinetic signals reflecting body movements during sleep, which we designated as “kinetosomnogram” (KSG).
We validated air-cleansing capacity of the tent CUSP and recorded changes in particle counts in response to various body movements. A volunteer with a polysomnography (PSG) equipment stayed in the tent CUSP overnight to record a KSG. The KSG was compared with PSG parameters. Each surge in the KSG appeared to have a corresponding arousal response (stage W) in the PSG. Moreover, there was a significant peak of power spectral density at 80-100 minutes suggestive of REM periods. The tent CUSP provides us with ultraclean environment for sleep and may be of help to assess sleep quality in a non-invasive and non-contact manner.

Free Research Field

総合医療・健康科学