Detecting the flow velocity in the 2 mm2-cross-section vessel using multi-exposure speckle imaging

Xiao Cao Gao; Yuan Yuan; Yong Bi; Wei Nan Gao

doi:10.1117/12.2625179

27 March 2022 Detecting the flow velocity in the 2 mm²-cross-section vessel using multi-exposure speckle imaging

Xiao Cao Gao, Yuan Yuan, Yong Bi, Wei Nan Gao

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 121698P (2022) https://doi.org/10.1117/12.2625179
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

Multi-Exposure Speckle Imaging (MESI) is a method that obtains speckle images at different exposure durations and has the capability to predict the relative flow rate in the presence of static scatters and the camera noise. The MESI technique has been performed in relatively small vessels (80μm–300μm) before, such as the cerebrum, the retina and the skin. Here we firstly, to the best of our knowledge, detected the flow rate in a 2 mm² –cross-section vessel using the MESI method, whose size medically mimicked the artery coronary. The phantom experiment was conducted to measure the flow rate ranging from 1 mm/sec to 10 mm/sec and the linear response of the velocity measurements was determined. In addition, the coherent parameter β was separately computed by MESI and the laser speckle contrast imaging (LSCI) method. It turned out the coherent parameter β obtained by the former model was more accurate with taking the static noise into account. The experimental results found that the MESI technology is promising to be applied in the biomedical measurement of the blood flow in the coronary artery bypass grafting.

Citation Download Citation

Xiao Cao Gao, Yuan Yuan, Yong Bi, and Wei Nan Gao "Detecting the flow velocity in the 2 mm²-cross-section vessel using multi-exposure speckle imaging", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 121698P (27 March 2022); https://doi.org/10.1117/12.2625179

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Speckle

Laser speckle contrast imaging

Speckle imaging

Blood circulation

Arteries

Laser scattering

Light scattering

Show All Keywords

Keywords/Phrases

Search In:

Publication Years