scholarly journals Multi-Frame Superresolution Optical Coherence Tomography for High Lateral Resolution 3D Imaging

2020 ◽  
Author(s):  
Kai Shen ◽  
Hui Lu ◽  
Sarfaraz Baig ◽  
Michael R. Wang
Keyword(s):  
Optical Coherence Tomography ◽  
3D Imaging ◽  
Lateral Resolution ◽  
Optical Coherence ◽  
High Lateral Resolution

Chemically Etched Single Mode Fiber Tip for High Lateral Resolution Imaging in Optical Coherence Tomography

2012 ◽  
Vol 516 ◽  
pp. 585-590
Author(s):  
Kozo Taguchi ◽  
Masafumi Totsuka
Keyword(s):  
Optical Coherence Tomography ◽  
Single Mode ◽  
Lateral Resolution ◽  
Fourier Domain ◽  
Optical Coherence ◽  
Etching Technique ◽  
Single Mode Fibre ◽  
Common Path ◽  
High Lateral Resolution ◽  
Mode Fibre

In this paper, we propose a high lateral resolution common-path Fourier domain optical coherence tomography (OCT) system with the use of a chemically etched single mode fibre. In our experiments, a single mode optical fibre of 840 nm was used for preparing the tapered tips. Our system used a conical microlens that was chemically etched by a selective chemical etching technique using an etching solution of buffered hydrofluoric acid (BHF). From the experimental results, we verified that our proposed optical coherence tomography system could operate as a common-path Fourier domain OCT system and the apex angle of the chemically etched single mode fibre tip was a very important parameter for generating high-resolution OCT images.

Sensorless astigmatism correction using a variable cross-cylinder for high lateral resolution optical coherence tomography in human retina

2021 ◽  
Author(s):  
Yoshikiyo Moriguchi ◽  
MASATO TAMURA ◽  
Shu-Yun Yeh ◽  
Akiko Matsumoto ◽  
Masahiro Shibutani ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Lateral Resolution ◽  
Variable Cross ◽  
Human Retina ◽  
Optical Coherence ◽  
Astigmatism Correction ◽  
High Lateral Resolution

Tapered single mode fiber tip for high lateral resolution imaging in optical coherence tomography

2007 ◽  
Author(s):  
Y. Verma ◽  
K. Divakar Rao ◽  
S. K. Mohanty ◽  
P. K. Gupta
Keyword(s):  
Optical Coherence Tomography ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Lateral Resolution ◽  
Optical Coherence ◽  
High Lateral Resolution ◽  
Resolution Imaging

scholarly journals Lateral resolution enhancement using programmable phase modulator in optical coherence tomography

2015 ◽  
Vol 26 (s1) ◽  
pp. S1465-S1471 ◽  
Author(s):  
Muhammad Faizan Shirazi ◽  
Nam Hyun Cho ◽  
Woonggyu Jung ◽  
Jeehyun Kim
Keyword(s):  
Optical Coherence Tomography ◽  
Resolution Enhancement ◽  
Lateral Resolution ◽  
Phase Modulator ◽  
Optical Coherence

scholarly journals 3D imaging of proximal caries in posterior teeth using optical coherence tomography

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Yasushi Shimada ◽  
Michael F. Burrow ◽  
Kazuyuki Araki ◽  
Yuan Zhou ◽  
Keiichi Hosaka ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Diagnostic Accuracy ◽  
3D Imaging ◽  
Characteristic Curve ◽  
Weighted Kappa ◽  
Optical Coherence ◽  
Cross Sectional ◽  
Posterior Teeth ◽  
Proximal Caries ◽  
X Ray

Abstract Optical coherence tomography (OCT) can create cross-sectional images of tooth without X-ray exposure. This study aimed to investigate the diagnostic accuracy of 3D imaging of OCT for proximal caries in posterior teeth. Thirty-six human molar teeth with 51 proximal surfaces visibly 6 intact, 16 slightly demineralized, and 29 distinct carious changes were mounted to take digital radiographs and 3D OCT images. The sensitivity, specificity and area under the receiver operating characteristic curve (AUC) for the diagnosis of enamel caries and dentin caries were calculated to quantify the diagnostic ability of 3D OCT in comparison with digital radiography. Diagnostic accuracy was evaluated by the agreement with histology using weighted Kappa. OCT showed significantly higher sensitivity, AUC and Kappa values than radiography. OCT can be a safer option for the diagnosis of proximal caries in posterior teeth that can be applied to the patients without X-ray exposure.

Air Force test chart-like phantom for measuring axial and lateral resolution in optical coherence tomography

2013 ◽  
Author(s):  
Ruo Yu Gu ◽  
Kristen L. Lurie ◽  
Audrey K. Ellerbee
Keyword(s):  
Optical Coherence Tomography ◽  
Air Force ◽  
Lateral Resolution ◽  
Optical Coherence

3D imaging of dental hard tissues with Fourier domain optical coherence tomography

2011 ◽  
Author(s):  
Yueli L. Chen ◽  
Yi Yang ◽  
Jing Ma ◽  
Jun Yan ◽  
Yuanxin Shou ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
3D Imaging ◽  
Fourier Domain ◽  
Optical Coherence ◽  
Dental Hard Tissues ◽  
Hard Tissues
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