CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 10494 > Article
Presentation
15 March 2018 A photoacoustic imaging approach using food grade contrast agent for pocket depth measurements (Conference Presentation)
Ching-Yu Lin, Fang Chen, Ali Hariri, Chien-Ju Chen, Jesse Jokerst
Author Affiliations +
Proceedings Volume 10494, Photons Plus Ultrasound: Imaging and Sensing 2018; 104942B (2018) https://doi.org/10.1117/12.2288453
Event: SPIE BiOS, 2018, San Francisco, California, United States
Abstract
Periodontal probing is a useful diagnostic tool to estimate the periodontal pocket depth and assess the status of periodontal disease, but is limited by systematic and random errors. Here, we used photoacoustic imaging in tandem with a food grade cuttlefish ink contrast agent to specifically measure pocket depths in swine models (n=27 teeth) and then compared this to Williams probe. Photoacoustic imaging used a Vevo LAZR imaging system (Visualsonics) at 40 MHz. Spectral data was collected at both 680 and 800 nm to discriminate between the photoacoustic signal from stains and contrast agent. The pocket depths were measured on the sagittal view of the 3D images as well as with a Williams probe before photoacoustic imaging. The Bland-Altman plots show that 97% of our samples fell within ± 1.96 standard deviations of the differences between the depths measured by photoacoustic imaging and the probe (95% confidence interval) at mesial, lingual and buccal, and distal locations. Small bias values of -0.04, +0.17, and -0.2 mm were identified at mesial, lingual and buccal, and distal locations, respectively; the 95% confidence intervals are plotted as well and all are < 1.0 mm. The photoacoustic imaging approach also offered 0.01 mm precision and could cover the entire pocket versus the probe-based approach that is limited to only a few sites.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Ching-Yu Lin, Fang Chen, Ali Hariri, Chien-Ju Chen, and Jesse Jokerst "A photoacoustic imaging approach using food grade contrast agent for pocket depth measurements (Conference Presentation)", Proc. SPIE 10494, Photons Plus Ultrasound: Imaging and Sensing 2018, 104942B (15 March 2018); https://doi.org/10.1117/12.2288453
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
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
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Photoacoustic imaging
Ultrasonography
3D image processing
Diagnostics
Error analysis
Imaging systems
Nanoparticles
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top