Biomedical implications of dental-ceramic defects investigated by numerical simulation, radiographic, microcomputer tomography, and time-domain optical coherence tomography

2011 ◽  
Author(s):  
Cosmin Sinescu ◽  
Meda Lavinia Negrutiu ◽  
Ciprian Ionita ◽  
Liviu Marsavina ◽  
Radu Negru ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Optical Coherence Tomography ◽  
Time Domain ◽  
Optical Coherence ◽  
Dental Ceramic

Time-domain and spectral-domain optical coherence tomography in the analysis of brain tumor tissue

2006 ◽  
Vol 38 (6) ◽  
pp. 588-597 ◽  
Author(s):  
H.J. Böhringer ◽  
D. Boller ◽  
J. Leppert ◽  
U. Knopp ◽  
E. Lankenau ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Brain Tumor ◽  
Time Domain ◽  
Tumor Tissue ◽  
Spectral Domain ◽  
Optical Coherence

Selected Clinical Comparisons of Spectral Domain and Time Domain Optical Coherence Tomography

2009 ◽  
Vol 40 (3) ◽  
pp. 325-328 ◽  
Author(s):  
Damien M. Luviano ◽  
Matthew S. Benz ◽  
Rosa Y. Kim ◽  
Richard H. Fish ◽  
Tien P. Wong ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Time Domain ◽  
Spectral Domain ◽  
Optical Coherence

Optical Coherence Tomography in Vitreoretinal Interface Disorders

2018 ◽  
pp. 236-243
Keyword(s):  
Optical Coherence Tomography ◽  
Time Domain ◽  
Treatment Modalities ◽  
Optical Coherence ◽  
Vitreoretinal Interface ◽  
Swept Source ◽  
Appearance Time ◽  
Swept Source Oct ◽  
New Treatment ◽  
Pathologic Processes

Optical coherence tomography (OCT), which is in use for about 20 years, facilitated the evaluation of the vitreoretinal interface, improved our understanding of its pathologic processes, and paved the way to new treatment approaches. By order of appearance, time-domain, spectral-domain, and swept-source OCT technologies redefined vitreoretinal interface disorders and their treatment modalities.

scholarly journals Comparison of Fourier-Domain and Time-Domain Optical Coherence Tomography in the Measurement of Thinnest Corneal Thickness in Keratoconus

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Chunxiao Wang ◽  
Xueying Xia ◽  
Bishan Tian ◽  
Shiyou Zhou
Keyword(s):  
Optical Coherence Tomography ◽  
Time Domain ◽  
Pearson Correlation ◽  
Corneal Thickness ◽  
Intraclass Correlation ◽  
Fourier Domain ◽  
Optical Coherence ◽  
Highly Correlated ◽  
Time Domain Oct

Objective. To compare fourier-domain optical coherence tomography (FD-OCT) and time-domain OCT (TD-OCT) in the determination of thinnest corneal thickness (TCT).Methods. This study included 55 keratoconus patients and 50 healthy volunteers. The RTVue-OCT (FD-OCT) and Visante-OCT (TD-OCT) were used for the measurement of the TCT. Three consecutive scans were performed. The comparison and agreement between the two modalities were analyzed by pairedt-test, the Pearson correlation, intraclass correlation coefficient (ICC), and Bland-Altman plots. intraobserver repeatability was analyzed by the intraobserver within-subject standard deviation (S(w)), coefficient of variation (CV(w)), and ICC.Results. The TCT value of normal corneas was higher by RTVue-OCT (530.4 ± 19.7 μm) than Visante-OCT (521.5 ± 18.3 μm) (p<0.001). For keratoconus eyes, the TCT was 425.0 ± 58.2 μm and 424.4 ± 55.7 μm (difference being 0.6 ± 10.2 μm,p=0.604). Strong correlation (r= 0.938∼0.985) (ICC = 0.915–0.984) was observed between the two OCTs, and each OCT exhibited excellent repeatability in determining the TCT in all subjects (ICC = 0.984–0.994).Conclusions. The values of TCT obtained from RTVue-OCT and Visante-OCT were highly correlated; however, the two values were different. Both OCT instruments exhibited good intraobserver reliability. The existence of systematic differences suggested that the two instruments cannot be used interchangeably.

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