scholarly journals High sensitivity phase mapping with parallel Fourier domain optical coherence tomography at 512 000 A-scan/s

2010 ◽  
Vol 18 (21) ◽  
pp. 21841 ◽  
Author(s):  
Branislav Grajciar ◽  
Yves Lehareinger ◽  
Adolf F. Fercher ◽  
Rainer A. Leitgeb
Keyword(s):  
Optical Coherence Tomography ◽  
High Sensitivity ◽  
Fourier Domain ◽  
Optical Coherence ◽  
Phase Mapping

Ex Vivo assessment of competent strut coverage after coronary stenting by optical coherence tomography

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
R Bhoite ◽  
H Jinnouchi ◽  
F Otsuka ◽  
Y Sato ◽  
A Sakamoto ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Predictive Value ◽  
Ex Vivo ◽  
High Sensitivity ◽  
Optical Coherence ◽  
Cross Sectional ◽  
Neointimal Thickness ◽  
Stent Strut ◽  
Oct Imaging ◽  
Definition Of

Abstract Background In many studies, struts coverage is defined as >0 mm of tissue overlying the stent struts by optical coherence tomography (OCT). However, this definition has never been validated using histology as the “gold standard”. The present study sought to assess the appropriate cut-off value of neointimal thickness of stent strut coverage by OCT using histology. Methods OCT imaging was performed on 39 human coronary arteries with stents from 25 patients at autopsy. A total of 165 cross-sectional images from 46 stents were co-registered with histology. The optimal cut-off value of strut coverage by OCT was determined. Strut coverage by histology was defined as endothelial cells with at least underlying two layers of smooth muscle cells. Considering the resolution of OCT is 10–20 μm, 3 different cut-off values (i.e. at ≥20, ≥40, and ≥60 μm) were assessed. Results A total of 2235 struts were evaluated by histology. Eventually, 1216 struts which were well-matched struts were analyzed in this study. By histology, uncovered struts were observed in 160 struts and covered struts were observed in 1056 struts. The broadly used definition of OCT-coverage which does not consider neointimal thickness yielded a poor specificity of 37.5% and high sensitivity 100%. Of 3 cut-off values, the cut-off value of >40 μm was more accurate as compared to >20 and >60 mm [sensitivity (99.3%), specificity (91.0%), positive predictive value (98.6%), and negative predictive value (95.6%)] Conclusion The most accurate cut-off value was ≥40 μm neointimal thickness by OCT in order to identify stent strut coverage validated by histology. Funding Acknowledgement Type of funding source: None

Reliability and Reproducibility of Assessment of Corneal Epithelial Thickness by Fourier Domain Optical Coherence Tomography

2012 ◽  
Vol 53 (6) ◽  
pp. 2580 ◽  
Author(s):  
Gaurav Prakash ◽  
Amar Agarwal ◽  
Anjum Iqbal Mazhari ◽  
Mathangi Chari ◽  
Dhivya Ashok Kumar ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Fourier Domain ◽  
Optical Coherence ◽  
Corneal Epithelial ◽  
Epithelial Thickness ◽  
Corneal Epithelial Thickness

Raman-pumped Fourier-domain mode-locked laser: analysis of operation and application for optical coherence tomography

2008 ◽  
Vol 33 (23) ◽  
pp. 2815 ◽  
Author(s):  
Thomas Klein ◽  
Wolfgang Wieser ◽  
Benjamin R. Biedermann ◽  
Christoph M. Eigenwillig ◽  
Gesa Palte ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Fourier Domain ◽  
Optical Coherence ◽  
Laser Analysis ◽  
Mode Locked Laser

scholarly journals REPRODUCIBILITY OF IN-VIVO CORONARY FOURIER DOMAIN OPTICAL COHERENCE TOMOGRAPHY

2010 ◽  
Vol 55 (10) ◽  
pp. A202.E1907
Author(s):  
Takayuki Okamura ◽  
Nieves Gonzalo ◽  
Patrick W. Serruys ◽  
Nico Bruining ◽  
Robert J. van Geuns ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Fourier Domain ◽  
Optical Coherence

scholarly journals Clinical Application of Rapid Serial Fourier-Domain Optical Coherence Tomography for Macular Imaging

Ophthalmology ◽  
2006 ◽  
Vol 113 (8) ◽  
pp. 1425-1431 ◽  
Author(s):  
Suhail Alam ◽  
Robert J. Zawadzki ◽  
Stacey Choi ◽  
Christina Gerth ◽  
Susanna S. Park ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Clinical Application ◽  
Fourier Domain ◽  
Optical Coherence
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