Evaluation of swallowing capacity based on esophageal and bolus movements by ultrasound video processing

Yutaka Suzuki; Osamu Sakata; Morimasa Tanimoto; Kyosuke Hatsushika; Keisuke Masuyama; Masayuki Morisawa

doi:10.1117/12.2516145

17 April 2019 Evaluation of swallowing capacity based on esophageal and bolus movements by ultrasound video processing

Yutaka Suzuki, Osamu Sakata, Morimasa Tanimoto, Kyosuke Hatsushika, Keisuke Masuyama, Masayuki Morisawa

Proceedings Volume 11071, Tenth International Conference on Signal Processing Systems; 110710U (2019) https://doi.org/10.1117/12.2516145
Event: Tenth International Conference on Signal Processing Systems, 2018, Singapore, Singapore

Abstract

Thickening agents are commonly used to prevent aspiration, a condition that can prove fatal in the elderly. However, no established indicators exist that show the extent to which sticky food reduces the risk of aspiration. VideoEndoscopy (VE) and VideoFluorography (VF) are the classic inspection methods used for evaluating the function of swallowing, but they are both have limited utility in that they are invasive. In this study, we propose a non-invasive method that exploits esophagus ultrasound videos to estimate the internal flow characteristics of foods, and facilitates quantitative evaluation of the swallowing function. The method combines optical flow with Maximally Stable Extremal Regions (MSER) to extract the movement velocity and position of the esophagus and bolus. The results suggest that movement velocity could be used as an indicator to quantify the internal flow characteristics of foods. The displacement of the esophagus indicates the esophageal opening and could be used as an indicator to evaluate swallowing.

Citation Download Citation

Yutaka Suzuki, Osamu Sakata, Morimasa Tanimoto, Kyosuke Hatsushika, Keisuke Masuyama, and Masayuki Morisawa "Evaluation of swallowing capacity based on esophageal and bolus movements by ultrasound video processing", Proc. SPIE 11071, Tenth International Conference on Signal Processing Systems, 110710U (17 April 2019); https://doi.org/10.1117/12.2516145

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