The development of a non-contact screening system for rapid medical inspection at a quarantine depot using a laser Doppler blood-flow meter, microwave radar and infrared thermography.
In order to conduct fast screening of passengers with infections such as severe acute respiratory syndrome (SARS) or pandemic influenza at a quarantine depot, we developed a non-contact screening system with self-produced program to conduct a human screening within five seconds, via a linear discriminant function from non-contact derived variables, i.e. palmer pulse derived from a laser Doppler blood-flow meter, respiration rate determined by a 10-GHz microwave radar, and facial temperature measured by thermography. The system evaluation was conducted on seven healthy male subjects (23 +/- 1 years). In order to achieve a pseudo-infection condition, the subjects maintained an ergometer exercise load (100 W, 10 minutes). Before (normal condition) and after (pseudo-infection condition) exercise, a significant linear discriminant function (p < 0.001) was determined to distinguish pseudo-infection condition from normal condition (Mahalanobis D-square = 20.3, classification error rate <5%). The proposed system appears promising for future application in fast screening of infection at a quarantine depot.
Matsui
T
T
Department of Management Systems Engineering, Tokyo Metropolitan University, Hino, Tokyo, Japan. tmatsui@cc.tmit.ac.jp
Suzuki
S
S
Ujikawa
K
K
Usui
T
T
Gotoh
S
S
Sugamata
M
M
Abe
S
S
D000328:Adult; D001831:Body Temperature; D003952:Diagnostic Imaging / Q000295:instrumentation; D004196:Disease Outbreaks / Q000517:prevention & control; D006339:Heart Rate; D006801:Humans; D017053:Infection Control / Q000295:instrumentation / Q000379:methods; D007251:Influenza, Human / Q000175:diagnosis*; D007259:Infrared Rays; D017078:Laser-Doppler Flowmetry; D008297:Male; D008403:Mass Screening / Q000295:instrumentation / Q000379:methods; D008872:Microwaves; D011790:Quarantine; D011825:Radar; D056152:Respiratory Rate; D045169:Severe Acute Respiratory Syndrome / Q000175:diagnosis*; D013817:Thermography; D013997:Time Factors; D055815:Young Adult