CC BY
10ALT'22
B-I-26
BIOMEDICAL PHOTONICS
Lasers in the evolving world of biomedical sensing and diagnosis
I will present a technological platform that can be used for remote sensing of many biomedical parameters simultaneously as well as to use those bio-parameters for performing medical diagnosis. The presented technological platform is based upon illuminating a tissue (e.g. located close to main blood arteries) with a laser and then using an imaging camera to perform temporal and spatial tracking of the back-scattered secondary speckle patterns in order to have nano-met-ric accurate estimation of the movements/vibrations occurring in the back-reflecting surface. After extracting various bio-parameters a medical diagnosis can be performed by applying machine learning post-processing.
The main feature of this technology is that the same single sensor is used for sensing of many biomedical parameters simultaneously and thus can provide a more comprehensive medical image needed for doing more precise medical diagnosis. The proposed technology was already applied for remote and continuous estimation of (1) vital bio-signs (such as heart beats rate and sound, respiration rate and sound, blood pulse pressure and velocity), (2) for hemodynamic sensing of blood flow characteristics and for (3) molecular and hematology related sensing of concentration of various chemicals in the blood stream (chemicals such as saturation of oxygen, blood coagulation, lactate, alcohol and glucose concentration).
The developed sensor was used for performing medical grade sensing of many bio-medical parameters simultaneously and performing medical diagnosis/diseases monitoring such as measuring intra ocular pressure (for glaucoma), photonic detection of fractures in bones, melanoma, breast cancer, atrial fibrillation (AFib) and congestive heart failure
Z. Zalevsky
Faculty of Engineering, Bar-Ilan University, Ramat-Gan 52900, Israel z.zalevsky@gmail.com
(CHF).
