In-vivo gingival sulcus imaging using full-range, complex-conjugate-free, endoscopic spectral domain optical coherence tomography

2012 ◽  
Author(s):  
Yong Huang ◽  
Kang Zhang ◽  
WonJin Yi ◽  
Jin U. Kang
Keyword(s):  
Optical Coherence Tomography ◽  
Full Range ◽  
Spectral Domain ◽  
Complex Conjugate ◽  
Optical Coherence

In vivo imaging with high-speed full-range complex spectral domain optical coherence tomography

2005 ◽  
Author(s):  
Erich Goetzinger ◽  
Michael Pircher ◽  
Rainer A. Leitgeb ◽  
Adolf F. Fercher ◽  
Christoph K. Hitzenberger
Keyword(s):  
Optical Coherence Tomography ◽  
In Vivo Imaging ◽  
High Speed ◽  
Full Range ◽  
Spectral Domain ◽  
Optical Coherence

scholarly journals Five-Frame Variable Phase-Shifting Method for Full-Range Spectral-Domain Optical Coherence Tomography

2018 ◽  
Vol 8 (9) ◽  
pp. 1580
Author(s):  
Jiewen Lin ◽  
Shuncong Zhong ◽  
Qiukun Zhang ◽  
Weiqiang Chen
Keyword(s):  
Optical Coherence Tomography ◽  
Full Range ◽  
Anterior Segment ◽  
Phase Shifts ◽  
Phase Shifting ◽  
Spectral Domain ◽  
Complex Conjugate ◽  
Optical Coherence ◽  
Variable Phase ◽  
Sd Oct

In order to achieve a better complex conjugate artifacts (CCA) suppression, we propose a five-frame variable phase-shifting (FVP) method for spectral domain optical coherence tomography (SD-OCT). The traditional five-frame invariant phase-shifting (FIP) method employs five phase shifts correlate with the center wavelength. However, due to the effects of polychromatic errors, the FIP method cannot get excellent CCA suppression. In the present work, we employ FVP method using variable phase shifts which is dependent on all the wavelengths and therefore, theoretically, the system would have no effects of polychromatic errors. This is the reason why the FVP method would achieve better CCA suppression than the FIP method. Comparative studies between FIP and FVP methods are investigated in the work. Subsequently, we develop a homemade SD-OCT system involving a homemade spectrometer, by which the anterior segment of a rat’s eyeball is measured. The experimental results demonstrate that the quality of OCT images is significantly improved by using FVP method with an increase by a factor of 1.7 on the CCA suppression of SD-OCT. FVP provides a new strategy for complex conjugate artifacts suppression for spectral domain optical coherence tomography.

scholarly journals Extended in vivo anterior eye-segment imaging with full-range complex spectral domain optical coherence tomography

2009 ◽  
Vol 14 (5) ◽  
pp. 050501 ◽  
Author(s):  
Johannes Jungwirth ◽  
Bernhard Baumann ◽  
Michael Pircher ◽  
Erich Götzinger ◽  
Christoph K. Hitzenberger
Keyword(s):  
Optical Coherence Tomography ◽  
Full Range ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Anterior Eye Segment

scholarly journals Design and Implementation Guidelines for a Modular Spectral-Domain Optical Coherence Tomography Scanner

2018 ◽  
Vol 2018 ◽  
pp. 1-22 ◽  
Author(s):  
Farid Atry ◽  
Israel Jacob De La Rosa ◽  
Kevin R. Rarick ◽  
Ramin Pashaie
Keyword(s):  
Optical Coherence Tomography ◽  
Imaging System ◽  
Optical Design ◽  
Spectral Domain ◽  
Design Parameters ◽  
Optical Coherence ◽  
Custom Made ◽  
Essential Knowledge ◽  
Sd Oct

In the past decades, spectral-domain optical coherence tomography (SD-OCT) has transformed into a widely popular imaging technology which is used in many research and clinical applications. Despite such fast growth in the field, the technology has not been readily accessible to many research laboratories either due to the cost or inflexibility of the commercially available systems or due to the lack of essential knowledge in the field of optics to develop custom-made scanners that suit specific applications. This paper aims to provide a detailed discussion on the design and development process of a typical SD-OCT scanner. The effects of multiple design parameters, for the main optical and optomechanical components, on the overall performance of the imaging system are analyzed and discussions are provided to serve as a guideline for the development of a custom SD-OCT system. While this article can be generalized for different applications, we will demonstrate the design of a SD-OCT system and representative results for in vivo brain imaging. We explain procedures to measure the axial and transversal resolutions and field of view of the system and to understand the discrepancies between the experimental and theoretical values. The specific aim of this piece is to facilitate the process of constructing custom-made SD-OCT scanners for research groups with minimum understanding of concepts in optical design and medical imaging.

scholarly journals Parabolic BM-scan technique for full range Doppler spectral domain optical coherence tomography

2010 ◽  
Vol 18 (2) ◽  
pp. 1358 ◽  
Author(s):  
Franck Jaillon ◽  
Shuichi Makita ◽  
Masaki Yabusaki ◽  
Yoshiaki Yasuno
Keyword(s):  
Optical Coherence Tomography ◽  
Full Range ◽  
Spectral Domain ◽  
Optical Coherence

In Vivo Assessment of Rodent Retinal Structure Using Spectral Domain Optical Coherence Tomography

2011 ◽  
pp. 489-494 ◽  
Author(s):  
M. Dominik Fischer ◽  
Gesine Huber ◽  
Francois Paquet-Durand ◽  
Peter Humphries ◽  
T. Michael Redmond ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Retinal Structure ◽  
In Vivo Assessment
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