ניטור אופטי לא פולשני של מצב עור התוף

Remote optical sensor for detection of otitis media

תיאור הפרויקט ותכולתו:

Otitis media (OM) is related to a group of inflammatory diseases of the middle ear. There are two main groups of otitis media. The first group refers to acute otitis media (AOM) and the second group refers to otitis media with effusion (OME). AOM is caused mainly due to childhood anatomy and immune function, while OME caused due to viral upper respiratory infections. AOM may increase crying, cause poor sleeping, decrease eating and sometimes will be followed with fever. Nowadays, only an expert can diagnose Otitis by examining the eardrum.

In this project a very simple, inexpensive and simple devise, which can be used easily by every parent for home use in order to detect otitis will be developed. The approach is based on temporal tracking of back-reflected secondary speckle patterns generated while illuminating the eardrum with a laser and applying external remote periodic acoustic pressure to the eardrum via a controlled vibration source. Applying a series of different vibration frequencies at the examined eardrum and analyzing the 2-D time varying speckle patterns in response to the applied periodic pressure creates a different frequency response for otitis with respect to healthy eardrum. Analyzing these spectral responses is the first step toward a simple detection of otitis.

דרישות:

מבוא לאופטיקה מודרנית
אותות ומערכות
מבוא ללייזרים
Matlab

מקורות:

[1] E. Hecht, Optics, Addison-Wesley (1998).

[2] J. W. Goodman, Laser Speckle and Related Phenomena, Topics    in Applied Physics, Springer (1975).

[3] Z. Zalevsky, Y. Beiderman, I. Margalit, S. Gingold, M. Teicher, V. Mico, and J. Garcia, "Simultaneous remote extraction of multiple speech sources and heart beats from secondary speckles pattern," Opt. Express 17, 21566–80 (2009).

[4] N. Ozana, I. Margalith, Y. Beiderman, M. Kunin, G. A. Campino, R. Gerasi, J. Garcia, V. Mico, and Z. Zalevsky, "Demonstration of a Remote Optical Measurement configuration that correlates with breathing, heart Rate, pulse pressure, blood Coagulation, and blood Oxygenation," Proc. IEEE 103, 248–262 (2015).

[5] Y. Beiderman, I. Horovitz, N. Burshtein, M. Teicher, J. Garcia, V. Mico, and Z. Zalevsky, "Remote estimation of blood pulse pressure via temporal tracking of reflected secondary speckles pattern," J. Biomed. Opt. 15 (2010).

email: nisaneti@gmail.com

פרופ' זלבסקי זאב (אחראי אקדמי)