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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

2009; Taylor & Francis; Volume: 33; Issue: 5 Linguagem: Inglês

10.1080/03091900902821151

1464-522X

Takemi Matsui, Satoshi Suzuki, K. Ujikawa, T. Usui, Shinji Gotoh, Masami Sugamata, Zorig Badarch, Shu Abe,

Hemodynamic Monitoring and Therapy

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 a 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 a 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 ergo-meter exercise load (100 W, 10 minutes). Before (normal condition) and after (pseudo-infection condition) exercise, a significant linear discriminant function (p50.001) was determined to distinguish the pseudo-infection condition from the normal condition (Mahalanobis D-square 1/4 20.3, classification error rate55%). The proposed system appears promising for future application in fast screening of infection at a quarantine depot.