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https://www.readbyqxmd.com/read/29664986/optical-coherence-tomography-angiography-and-ultra-widefield-optical-coherence-tomography-in-a-child-with-incontinentia-pigmenti
#1
Sang Jin Kim, Jianlong Yang, Gangjun Liu, David Huang, J Peter Campbell
Incontinentia pigmenti (IP) is a rare X-linked dominant disorder that can cause retinal nonperfusion, neovascularization, and retinal detachment. Evaluation of the peripheral retinal vasculature and appropriate treatment can reduce the risk of blindness. The authors report the use of a handheld prototype optical coherence tomography angiography (OCTA) and ultra-widefield OCT (UWF-OCT) during exam under anesthesia of a 2-year-old with a history of severe early onset IP. UWF-OCT and OCTA may be used as noninvasive imaging modalities for IP and similar retinal vascular disorders in supine young children...
April 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29664832/optical-coherence-tomography-angiography-macular-vascular-density-measurements-and-the-central-10-2-visual-field-in-glaucoma
#2
Rafaella C Penteado, Linda M Zangwill, Fábio B Daga, Luke J Saunders, Patricia Isabel C Manalastas, Takuhei Shoji, Tadamichi Akagi, Mark Christopher, Adeleh Yarmohammadi, Sasan Moghimi, Robert N Weinreb
PURPOSE: To evaluate the association between macula vascular density assessed by optical coherence tomography angiography (OCT-A) and central visual field (VF) threshold sensitivities in healthy, glaucoma suspect and glaucoma patients. METHODS: A total of 185 eyes from 38 healthy participants, 31 glaucoma suspects, 72 mild glaucoma patients, and 44 moderate/severe glaucoma patients from the Diagnostic Innovations in Glaucoma Study who underwent OCT-A images of the macula and 10-2 VF testing were enrolled in this observational cross-sectional study...
April 16, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29660256/quantitative-evaluation-of-oct-angiography-images-of-diabetic-retinopathy-eyes-before-and-after-removal-of-projection-artifacts
#3
Nivedhitha Govindaswamy, Santosh G Gadde, Lavanya Chidambara, Devanshi Bhanushali, Neha Anegondi, Abhijit Sinha Roy
Projection artifacts (PA) affect the quantification of vascular parameters in the deep layer OCT angiography image. This study eliminated PA and quantified its effect on imaging. 53 eyes (30 subjects) of normal Indian subjects and 113 eyes (92 patients) of type 2 diabetes mellitus with retinopathy (DR) underwent imaging with a scan area of 3 mm × 3 mm. In this study, a normalized cross-correlation between superficial and deep layer was used to remove PA in deep layer. Local fractal analysis was done to compute vascular parameters such as foveal avascular zone area (mm2 ), vessel density (%), spacing between large vessels (%) and spacing between small vessels (%)...
April 16, 2018: Journal of Biophotonics
https://www.readbyqxmd.com/read/29656284/findings-of-optical-coherence-tomography-angiography-in-best-vitelliform-macular-dystrophy
#4
Xiao Na Wang, Qi Sheng You, Qian Li, Yang Li, Yu Mao, Feng Hu, Hui Ying Zhao, Frank F Tsai, Xiao Yan Peng
PURPOSE: To evaluate the vascular anatomy of eyes with Best vitelliform macular dystrophy (BVMD) using optical coherence tomography angiography (OCTA). METHODS: This retrospective case-control study enrolled 11 consecutive BVMD patients and 13 age-matched healthy participants. Both eyes of each participant were imaged using a macular OCTA scan (3 × 3 mm) by 70-kHz 840-nm spectral-domain OCT. The flow signal was calculated using the split-spectrum amplitude-decorrelation angiography (SSADA) algorithm...
April 13, 2018: Ophthalmic Research
https://www.readbyqxmd.com/read/29651354/evolution-of-choroidal-neovascularization-due-to-presumed-ocular-histoplasmosis-syndrome-on-multimodal-imaging-including-optical-coherence-tomography-angiography
#5
T Y Alvin Liu, Alice Yang Zhang, Adam Wenick
A 37-year-old Caucasian woman presented with acute decrease in central vision in her right eye and was found to have subfoveal choroidal neovascularization (CNV) due to presumed ocular histoplasmosis syndrome (POHS). Her visual acuity improved from 20/70 to 20/20 at her 6-month follow-up, after 3 consecutive monthly intravitreal bevacizumab injections were initiated at her first visit. Although no CNV activity was seen on fluorescein angiography (FA) or spectral-domain optical coherence tomography (SD-OCT) at her 2-month, 4-month, and 6-month follow-up visits, persistent flow in the CNV lesion was detected on optical coherence tomography angiography (OCTA)...
2018: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/29651340/changes-in-flow-density-measured-using-optical-coherence-tomography-angiography-after-istent-insertion-in-combination-with-phacoemulsification-in-patients-with-open-angle-glaucoma
#6
Maged Alnawaiseh, Viktoria Müller, Larissa Lahme, Ralph Laurent Merté, Nicole Eter
Purpose: To evaluate changes in flow density after the implantation of a trabecular microbypass stent (iStent) in combination with cataract surgery. Methods: A total of 48 eyes of 48 patients, who underwent either cataract surgery alone (cataract group) or cataract surgery with implantation of two iStent inject devices (iStent group), were prospectively included in this study. Intraocular pressure (IOP) and flow density data before and after surgery were extracted and analyzed...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29651339/comparison-of-optical-coherence-tomography-angiography-and-laser-speckle-flowgraphy-for-the-diagnosis-of-normal-tension-glaucoma
#7
Asuka Takeyama, Kyoko Ishida, Ayako Anraku, Masahiro Ishida, Goji Tomita
Purpose: To compare optical coherence tomography angiography (OCT-A) and laser speckle flowgraphy (LSFG) for the diagnosis of normal-tension glaucoma (NTG). Methods: Twenty-eight eyes of 28 patients with NTG and 25 eyes of 25 normal subjects matched for age, refractive errors, systemic blood pressure, and central corneal thickness were evaluated. OCT-A was used to measure whole image vessel density, inside disc vessel density, and peripapillary vessel density; using LSFG, mean blur rate (MBR) inside the whole optic nerve head (ONH) area (MBRA ), and MBR of the vessel area (MBRV ) and tissue area (MBRT ) inside the ONH, were determined...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29649987/multimodal-imaging-of-foveoschisis-and-macular-pseudohole-associated-with-gyrate-atrophy-a-family-report
#8
Imène Zhioua Braham, Imen Ammous, Rim Maalej, Majdi Boukari, Ilhem Mili Boussen, Khalil Errais, Raja Zhioua
BACKGROUND: To report the results of multimodal imaging of a biochemically confirmed case of a family with gyrate atrophy (GA) associated with foveoschisis and macular pseudohole. CASE PRESENTATION: Two sisters presented to us with progressive bilateral decreased vision. The 26-year old sister had a best corrected visual acuity (BCVA) of 20/32 in the right eye (RE) and 20/100 in the left eye (LE). Dilated fundus examination revealed multiple bilateral chorioretinal atrophy areas in the midperipheral and peripheral retina...
April 12, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29643788/polypoidal-choroidal-vasculopathy-associated-with-optic-disc-coloboma
#9
Yumiko Nakano, Akiko Miki, Shigeru Honda, Makoto Nakamura
Purpose: To report a case of polypoidal choroidal vasculopathy associated with optic disc coloboma. Methods: Case report. Results: A 50-year-old woman presented with optic disc coloboma and retinochoroidal coloboma associated with subretinal hemorrhage and serous retinal detachment (SRD) in her left eye. Optical coherence tomography (OCT) confirmed SRD at the macula and showed a sharply elevated retinal epithelial detachment at the choroidal excavation...
January 2018: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/29643787/optical-coherence-tomography-angiography-of-foveal-neovascularization-in-diabetic-retinopathy
#10
Konstantinos Andreanos, Tryfon Rotsos, George Kymionis, Chryssanthi Koutsandrea, Athanasios Kotsolis, Ioannis Ladas
Purpose: To report a case of foveal neovascularization in a patient with proliferative diabetic retinopathy as seen on optical coherence tomography angiography (OCT-A). Methods: Multimodal imaging was used for diagnostic investigation. Patient: A 61-year-old male with a 16-year history of insulin-dependent diabetes mellitus was referred to our medical retina department for examination and management. Meticulous fundus examination and multimodal imaging revealed proliferative diabetic retinopathy lesions, including neovascularization located in the foveal area...
January 2018: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/29625839/choroidal-and-sub-retinal-pigment-epithelium-caverns-multimodal-imaging-and-correspondence-with-friedman-lipid-globules
#11
Rosa Dolz-Marco, Jay P Glover, Orly Gal-Or, Katie M Litts, Jeffrey D Messinger, Yuhua Zhang, Mariano Cozzi, Marco Pellegrini, K Bailey Freund, Giovanni Staurenghi, Christine A Curcio
PURPOSE: To survey Friedman lipid globules by high-resolution histologic examination and to compare with multimodal imaging of hyporeflective caverns in eyes with geographic atrophy (GA) secondary to age-related macular (AMD) and other retinal diseases. DESIGN: Histologic survey of donor eyes with and without AMD. Clinical case series with multimodal imaging analysis. PARTICIPANTS: Donor eyes (n = 139; 26 with early AMD, 13 with GA, 40 with nAMD, 52 with a healthy macula, and 8 with other or unknown characteristics) and 41 eyes of 28 participants with GA (n = 16), nAMD (n = 8), Stargardt disease (n = 4), cone dystrophy (n = 2), pachychoroid spectrum (n = 6), choroidal hemangioma (n = 1), and healthy eyes (n = 4)...
April 3, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29625447/imaging-of-corneal-neovascularization-optical-coherence-tomography-angiography-and-fluorescence-angiography
#12
Matthias Brunner, Vito Romano, Bernhard Steger, Riccardo Vinciguerra, Samuel Lawman, Bryan Williams, Nicholas Hicks, Gabriela Czanner, Yalin Zheng, Colin E Willoughby, Stephen B Kaye
Purpose: The purpose of this study was to compare optical coherence tomography angiography (OCTA) and indocyanine green angiography (ICGA) for the assessment of corneal neovascularization (CoNV). Methods: Patients with CoNV extending at least 3 mm into the cornea were included. All patients underwent corneal imaging at the same visit. Images were recorded using the AngioVue OCTA system (Optovue, Inc.) with the long corneal adaptor module (CAM-L). ICGA images were recorded with fluorescent filters using the Heidelberg system (HRA2 Scanning Laser Ophthalmoscope; Heidelberg Engineering)...
March 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29623170/a-practical-approach-to-assessing-stent-results-with-ivus-or-oct
#13
REVIEW
Daisuke Hachinohe, Satoru Mitomo, Luciano Candilio, Azeem Latib
Coronary angiography is routinely used to assess the extent and severity of coronary artery disease and for decision-making during percutaneous coronary interventions (PCI). However, it is sometimes inadequate for deciding a strategy and defining optimal stenting outcomes. In this review, we present a comprehensive and practical approach to PCI using intravascular ultrasound or optical coherence tomography to optimize stent deployment and assess procedural complications after stent implantation.
January 2018: Methodist DeBakey Cardiovascular Journal
https://www.readbyqxmd.com/read/29621379/fluorescein-angiographic-characteristics-of-macular-edema-during-infancy
#14
Xi Chen, Shwetha Mangalesh, Du Tran-Viet, Sharon F Freedman, Lejla Vajzovic, Cynthia A Toth
Importance: Macular edema during infancy, a subclinical feature identified in premature infants by handheld spectral-domain optical coherence tomography (SD-OCT), has been associated with poorer visual acuity and neurodevelopmental outcomes. Features of macular edema on fluorescein angiography (FA) are needed to understand its pathophysiology, but to date have not been reported previously. Objective: To investigate the FA features of macular edema during infancy...
April 5, 2018: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29619253/long-term-natural-outcomes-of-simple-hemorrhage-associated-with-lacquer-crack-in-high-myopia-a-risk-factor-for-myopic-cnv
#15
Bing Liu, Xiongze Zhang, Lan Mi, Ling Chen, Feng Wen
Purpose: To investigate the relationship between simple hemorrhage (SH) associated with lacquer crack (LC) and myopic choroidal neovascularization (CNV) in high myopia. Methods: A cross-sectional evaluation including best-corrected visual acuity (BCVA), axial length, refractive error, color fundus photography, and spectral domain optical coherence tomography (SD-OCT) was performed in patients diagnosed with high myopia and SH. Fundus fluorescein angiography and indocyanine green angiography were performed if the eye was suspected with CNV...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29616627/lumen-boundaries-extracted-from-coronary-computed-tomography-angiography-on-computed-fractional-flow-reserve-ffrct-validation-with-optical-coherence-tomography
#16
Kenzo Uzu, Hiromasa Otake, Gilwoo Choi, Takayoshi Toba, Hyun Jin Kim, Arjun Rou, Michiel Schaap, Leo Grady, Masahito Kawata, Toshiro Shinke, Charles Anthony Taylor, Ken-Ichi Hirata
AIMS: To evaluate the accuracy of minimal lumen area (MLA) by coronary computed tomography angiography (cCTA) and its impact on fractional flow reserve (FFRCT). METHODS AND RESULTS: Fifty-seven patients (118 lesions, 72 vessels) who underwent cCTA and optical coherence tomography (OCT) were enrolled. OCT and cCTA were co-registered and MLAs were measured with both modalities. FFROCT was calculated using OCT-updated models with cCTA-based lumen geometry replaced by OCT-derived geometry...
April 3, 2018: EuroIntervention
https://www.readbyqxmd.com/read/29613982/association-between-the-deep-layer-microvasculature-dropout-and-the-visual-field-damage-in-glaucoma
#17
Min Hee Suh, Jun Woo Park, Hae Rang Kim
PURPOSE: To compare the visual field (VF) sensitivity according to the presence of parapapillary deep-layer microvasculature dropout (MvD_P) and focal lamina cribrosa (LC) defect. METHODS: Among 158 open-angle glaucoma patients, 4 groups were formed according to the presence of MvD_P and focal LC defect determined by optical coherence tomography (OCT) angiography and by enhanced depth imaging spectral-domain OCT, respectively: (1) eyes without either focal LC defect or MvD_P (group 1); (2) eyes with focal LC defect but no MvD_P (group 2); (3) eyes without focal LC defect but with MvD_P (group 3); (4) eyes with both focal LC defect and MvD_P (group 4)...
April 2, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29602961/oct-angiography-oct-angiography-2017-by-chow-de-oliveira-et-al-190-pp-161-illustrations-%C3%A2-89-99-99-99-hardback-isbn-9781626234734-thieme-publishers-new-york-stuttgart
#18
Frank Verbraak
No abstract text is available yet for this article.
March 30, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29601820/dense-b-scan-optical-coherence-tomography-angiography
#19
K Bailey Freund, Sarra Gattoussi, Belinda Cs Leong
PURPOSE: To describe a novel imaging technique, we call "dense B-scan optical coherence tomography angiography" (DB OCTA) in which thin dense raster scans are used to produce highly resolved structural B-scans with superimposed flow signal that provide precise correlation between retinal microstructure and blood flow. DESIGN: Observational case series METHODS: Normal eyes and eyes with macular findings of interest were imaged with DB OCTA in which 150-400 OCT B-scans were acquired within a narrow area (from a single line to 1°) with a width of 10 to 30°...
March 27, 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29600987/the-use-of-optical-coherence-tomography-angiography-for-detecting-choroidal-neovascularization-compared-to-standard-multimodal-imaging
#20
T Soomro, J Talks
PurposeTo assess OCT angiography (OCTA) effectiveness at detecting choroidal neovascularization (CNV) in cases of suspected neovascular age related macular degeneration (nAMD), chronic central serous retinopathy (cCSR) and pathological myopia compared to FFA and how it compares to a multimodal approach (OCT, FFA and ICGA) for detecting the vascular network.MethodsThis was a retrospective observational cohort study of patients who had clinical and/or OCT findings suggestive of CNV, having further investigation with FFA, with or without ICG, and had same day OCTA using the Heidelberg Spectralis OCT2 beta angiography module...
March 30, 2018: Eye
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