scholarly journals Polarization properties of retinal blood vessel walls measured with polarization sensitive optical coherence tomography

2021 ◽  
Author(s):  
Hadi Afsharan ◽  
MICHAEL HACKMANN ◽  
Qiang Wang ◽  
Farzaneh Navaeipour ◽  
Stephy Vijaya Kumar Jayasree ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Blood Vessel ◽  
Optical Coherence ◽  
Retinal Blood Vessel ◽  
Vessel Walls

Early diabetic retinopathy diagnosis based on local retinal blood vessel analysis in optical coherence tomography angiography (OCTA) images

2018 ◽  
Vol 45 (10) ◽  
pp. 4582-4599 ◽  
Author(s):  
Nabila Eladawi ◽  
Mohammed Elmogy ◽  
Fahmi Khalifa ◽  
Mohammed Ghazal ◽  
Nicola Ghazi ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Diabetic Retinopathy ◽  
Blood Vessel ◽  
Optical Coherence Tomography Angiography ◽  
Optical Coherence ◽  
Retinal Blood Vessel

Retinal Blood Vessel Caliber Estimation for Optical Coherence Tomography Angiography Images Based on 3D Superellipsoid Modeling

2019 ◽  
Vol 19 (02) ◽  
pp. 1950011 ◽  
Author(s):  
Myounghee Han ◽  
Yongjoo Kim ◽  
Jang Ryul Park ◽  
Benjamin J. Vakoc ◽  
Wang-Yuhl Oh ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Blood Vessel ◽  
Optical Coherence Tomography Angiography ◽  
3D Visualization ◽  
Retinal Vessel ◽  
Flow Speed ◽  
Retinal Diseases ◽  
Optical Coherence ◽  
Retinal Blood Vessel

Changes of retinal blood vessel calibers may reflect various retinal diseases and even several non-retinal diseases. We propose a new method to estimate retinal vessel calibers from 3D optical coherence tomography angiography (OCTA) images based on 3D modeling using superellipsoids. Taking advantage of 3D visualization of the retinal tissue microstructures in vivo provided by OCTA, our method can detect retinal blood vessels precisely, estimate their calibers reliably, and show the relative flow speed visually.

scholarly journals Detection of retinal blood vessel changes in multiple sclerosis with optical coherence tomography

2016 ◽  
Vol 7 (6) ◽  
pp. 2321 ◽  
Author(s):  
Basanta Bhaduri ◽  
Ryan M. Nolan ◽  
Ryan L. Shelton ◽  
Lara A. Pilutti ◽  
Robert W. Motl ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Optical Coherence Tomography ◽  
Blood Vessel ◽  
Optical Coherence ◽  
Retinal Blood Vessel

Blood Vessel Density Measured Using Dynamic Optical Coherence Tomography is a Tool for Wound Healers

2021 ◽  
pp. 153473462110173
Author(s):  
Rajgopal Mani ◽  
Jon Holmes ◽  
Kittipan Rerkasem ◽  
Nikolaos Papanas
Keyword(s):  
Blood Flow ◽  
Optical Coherence Tomography ◽  
Blood Vessel ◽  
Chronic Wounds ◽  
Vessel Density ◽  
Optical Coherence ◽  
Skin Microcirculation ◽  
Wound Edge ◽  
Venous Ulcers ◽  
Oct Imaging

Dynamic optical coherence tomography (D-OCT) is a relatively new technique that may be used to study the substructures in the retina, in the skin and its microcirculation. Furthermore, D-OCT is a validated method of imaging blood flow in skin microcirculation. The skin around venous and mixed arterio-venous ulcers was imaged and found to have tortuous vessels assumed to be angiogenic sprouts, and classified as dots, blobs, coils, clumps, lines, and curves. When these images were analyzed and measurements of vessel density were made, it was observed that the prevalence of coils and clumps in wound borders was significantly greater compared with those at wound centers. This reinforced the belief of inward growth of vessels from wound edge toward wound center which, in turn, reposed confidence in following the wound edge to study healing. D-OCT imaging permits the structure and the function of the microcirculation to be imaged, and vessel density measured. This offers a new vista of skin microcirculation and using it, to better understand angiogenesis in chronic wounds.

Three Remodeling of the Optical Nerve Head Including Retinal Blood Vessel Based on Live Animal Experiment

2013 ◽  
Vol 275-277 ◽  
pp. 2673-2676
Author(s):  
Xiu Qing Qian ◽  
Kun Ya Zhang ◽  
Zi Hang Liu ◽  
Zhi Cheng Liu
Keyword(s):  
Risk Factors ◽  
Optical Coherence Tomography ◽  
Blood Vessel ◽  
Animal Experiment ◽  
Three Dimensional ◽  
Image Process ◽  
Boolean Operation ◽  
Vascular Risk ◽  
Retinal Blood Vessel ◽  
Live Animal

With increasing evidence that vascular risk factors play a role in the development of glaucoma, it is critical to be familiar with factors related to intraocular blood flow. It is important to obtain that the modal of the optical never head including the retinal blood vessel. The images optical never head of a cat using the optical coherence tomography images were obtained. Then, the three modal of the optical never head and the retinal blood vessel were reconstructed using the technology of image process, respectively. The three-dimensional modal of optical nerve head including retinal blood vessel could get using Boolean Operation.

scholarly journals 17-μm spectroscopic spectral-domain optical coherence tomography for imaging lipid distribution within blood vessel

2015 ◽  
Vol 23 (5) ◽  
pp. 6645 ◽  
Author(s):  
Masato Tanaka ◽  
Mitsuharu Hirano ◽  
Kiyotaka Murashima ◽  
Hiroshi Obi ◽  
Ryo Yamaguchi ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Blood Vessel ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Lipid Distribution
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