Spatiotemporal Optical Coherence (STOC) Manipulation Improves Imaging with Full-Field Swept-Source OCT

2019 ◽  
Author(s):  
Dawid Borycki ◽  
Piotr Wegrzyn ◽  
Maciej Wojtkowski
Keyword(s):  
Optical Coherence ◽  
Swept Source ◽  
Full Field ◽  
Swept Source Oct

scholarly journals Feasibility of peripheral OCT imaging using a novel integrated SLO ultra-widefield imaging swept-source OCT device

2021 ◽  
Author(s):  
Simrat K. Sodhi ◽  
John Golding ◽  
Carmelina Trimboli ◽  
Netan Choudhry
Keyword(s):  
Posterior Pole ◽  
Field Of View ◽  
Retinal Diseases ◽  
Swept Source ◽  
Full Field ◽  
Swept Source Oct ◽  
Oct Imaging ◽  
Field Device ◽  
Areas Of Interest ◽  
Retinal Pathologies

Abstract Purpose To describe the feasibility of peripheral OCT imaging in retinal diseases using a novel full-field device. Methods A total of 134 consecutive eyes were referred and imaged on the Optos Silverstone swept-source OCT (SS-OCT) (Optos PLC; Dunfermline, UK). Scanning laser ophthalmoscope (SLO) images and the associated SS-OCT images were obtained in the posterior pole, mid-periphery or far periphery based on the nature of the referral and on new areas of interest observed in the optomap images at the time of imaging. Results A total of 134 eyes (96 patients) were enrolled in the study. One hundred and twenty-five eyes (91 patients) with 38 retinal pathologies were prospectively assessed and 9 eyes (5 patients) were excluded due to incomplete image acquisition. The average age of the subjects was 54 years (range 21–92 years). Thirty-nine out of 125 eyes (31%) had macular pathologies. Eighty-six out of 125 eyes (69%) had peripheral only pathologies, an area which cannot be visualized by standard OCT devices with a 50 degree field-of-view. Conclusions The ability to capture peripheral pathologies using an integrated SLO-UWF imaging with full-field swept-source provided high-grade anatomical insight that confirmed the medical and surgical management in a majority of cases. Its use in the mid- and far periphery provides a holistic clinical picture, which can potentially aid in the understanding of various retinal pathologies.

scholarly journals Extratympanic Observation of Middle and Inner Ear Structures in Rodents Using Optical Coherence Tomography

2020 ◽  
Vol 13 (2) ◽  
pp. 106-112 ◽  
Author(s):  
Se-Joon Oh ◽  
Il-Woo Lee ◽  
Soo-Geun Wang ◽  
Soo-Keun Kong ◽  
Hong-Ki Kim ◽  
...  
Keyword(s):  
Animal Model ◽  
Optical Coherence Tomography ◽  
Inner Ear ◽  
Oval Window ◽  
Diagnostic Information ◽  
Optical Coherence ◽  
Swept Source ◽  
Diagnostic Technology ◽  
Swept Source Oct ◽  
Rats And Mice

Objectives. This study aimed to investigate whether optical coherence tomography (OCT) provides useful information about the microstructures of the middle and inner ear via extratympanic approach and thereby could be utilized as an alternative diagnostic technology in ear imaging.Methods. Five rats and mice were included, and the swept-source OCT system was applied to confirm the extent of visibility of the middle and inner ear and measure the length or thickness of the microstructures in the ear. The cochlea was subsequently dissected following OCT and histologically evaluated to compare with the OCT images.Results. The middle ear microstructures such as ossicles, stapedial artery and oval window through the tympanic membrane with the OCT could be confirmed in both rats and mice. It was also possible to obtain the inner ear images such as each compartment of the cochlea in the mice, but the bone covering bulla needed to be removed to visualize the inner ear structures in the rats which had thicker bulla. The bony thickness covering the cochlea could be measured, which showed no significant differences between OCT and histologic image at all turns of cochlea.Conclusion. OCT has been shown a promising technology to assess real-time middle and inner ear microstructures noninvasively with a high-resolution in the animal model. Therefore, OCT could be utilized to provide additional diagnostic information about the diseases of the middle and inner ear.

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 Full‐field swept‐source optical coherence tomography and neural tissue classification for deep brain imaging

2019 ◽  
Vol 13 (2) ◽  
Author(s):  
Ilan Felts Almog ◽  
Fu‐Der Chen ◽  
Suhan Senova ◽  
Anton Fomenko ◽  
Elise Gondard ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Brain Imaging ◽  
Neural Tissue ◽  
Optical Coherence ◽  
Tissue Classification ◽  
Swept Source ◽  
Full Field ◽  
Deep Brain

Full-field swept-source optical coherence tomography with Gaussian spectral shaping

2008 ◽  
Author(s):  
Satish Kumar Dubey ◽  
Gyanendra Sheoran ◽  
Tulsi Anna ◽  
Arun Anand ◽  
Dalip Singh Mehta ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence ◽  
Spectral Shaping ◽  
Swept Source ◽  
Full Field
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