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2. Perioperative intraretinal fluid observed using optical coherence tomography in the epiretinal membrane
  
  Explore Home - Springer Jan 25 2020 Ophthalmology
  
  Background Postoperative intraretinal fluid (IRF) is reportedly associated with visual outcomes after epiretinal membrane (ERM) surgery. However, preoperative IRF is common, and persistent IRF would have different impact on visual function from postoperative newly developed IRF. Therefore, we aimed to investigate the incidence rate and clinical implications of perioperative IRF in ERM. Methods Medical records of patients who underwent vitrectomy for idiopathic ERM between January 2014 and January 2017 were ...
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  Mentions: Pusan National University
3. Extratympanic Observation of Middle and Inner Ear Structures in Rodents Using Optical Coherence Tomography
  
  Explore e-ceo.org Nov 5 2019 Otolaryngology
  
  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. Method. 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 ...
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  Mentions: Pusan National University
4. The Shortest Radius of Curvature of Bruch's Membrane in Macular Optical Coherence Tomography
  
  Explore KoreaMed Synapse Sep 24 2019 Ophthalmology
  
  Purpose To develop software to measure the shortest radius in curvature of Bruch's membrane from optical coherence tomography (OCT), and then to apply it to various types of eyes. Methods Macular OCT images consisting of 12 images of 9 mm radial scans were studied. The horizontal to vertical pixel ratios were changed to 1:1, and Bruch's membrane was marked automatically on each image. Software to measure the ...
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  Mentions: Pusan National University
5. Diagnostic Ability of Macular Vessel Density in the Ganglion Cell–Inner Plexiform Layer on Optical Coherence Tomographic Angiography for Glaucoma
  
  Explore TVST Journal Aug 3 2019 Ophthalmology
  
  Purpose : The purpose of this study was to analyze the macular vessel density layer-by-layer and compare the diagnostic value of each in diagnosing glaucoma. Methods : This was a prospective comparative cross-sectional study, and the setting was glaucoma referral practice. The study participants were patients with primary open-angle glaucoma undergoing treatment with drugs, and age-matched normal controls who visited our clinic for regular eye examinations for refractive errors. All participants were ...
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  Mentions: Pusan National University
6. Comparison of conjunctival vascularity changes using optical coherence tomography angiography after trabeculectomy and phacotrabeculectomy
  
  Explore Home - Springer Jul 14 2019 Ophthalmology
  
  Purpose To compare bleb vascularity changes using optical coherence tomography angiography (OCT-A) between mitomycin-C (MMC)-augmented trabeculectomy and phacotrabeculectomy and to determine whether bleb vascularity measurements during preoperative and early postoperative periods could act as surrogate parameters to predict surgical outcomes. Methods We retrospectively reviewed data for 72 eyes from 72 glaucoma patients who underwent MMC-augmented trabeculectomy with/without cataract surgery. Bleb area scans were obtained using OCT-A during the ...
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  Mentions: Pusan National University
7. Enlargement of polypoidal choroidal vasculopathy lesion without exudative findings assessed in en face optical coherence tomography images
  
  Explore Home - Springer May 23 2019 Ophthalmology
  
  Purpose This study aimed to investigate growth of polypoidal choroidal vasculopathy (PCV) without exudative findings assessed in en face optical coherence tomography (OCT) images and its clinical implications. Methods Fifty patients who were diagnosed with PCV and had no disease activity after treatment with intravitreal anti-vascular endothelial growth factor (anti-VEGF) were included. Patients were followed up for at least 12 months. Measurement of best-corrected visual acuity and volume scan using ...
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  Mentions: Pusan National University
8. Evaluation of Functional Filtering Bleb Using Optical Coherence Tomography Angiography
  
  Explore TVST Journal May 11 2019 Ophthalmology
  
  Purpose : This study investigated whether filtering blebs can be evaluated using optical coherence tomography angiography (OCT-A) and compared vascularity parameters with conventional bleb grading systems. Methods : A total of 92 patients with glaucoma, who underwent mitomycin Caugmented trabeculectomy, were enrolled in this study, and 92 eyes were assessed in total. The participants underwent OCT-A in external mode and anterior segment photography for bleb evaluation. For evaluation of bleb vascularity, a ...
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  Mentions: Pusan National University
9. Akinetic swept-source optical coherence tomography based on a pulse-modulated active mode locking fiber laser for human retinal imaging
  
  Explore Nature Publishing Group Dec 8 2018 Ophthalmology
  
  Optical coherence tomography (OCT) is a noninvasive imaging modality that can provide high-resolution, cross-sectional images of tissues. Especially in retinal imaging, OCT has become one of the most valuable imaging tools for diagnosing eye diseases. Considering the scattering and absorption properties of the eye, the 1000-nm OCT system is preferred for retinal imaging. In this study, we describe the use of an akinetic swept-source OCT system based on a pulse-modulated ...
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  Mentions: Chang-Seok Kim Pusan National University Jun Geun Shin
10. Optical Coherence Tomography Angiography Findings in Superior Segmental Optic Nerve Hypoplasia
  
  Explore LWW Online Oct 6 2018 Ophthalmology
  
  Superior segmental optic nerve hypoplasia (SSOH) is a non progressive congenital optical nerve head anomaly that is ...
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  Mentions: Pusan National University
11. Macular Vessel Density and Ganglion Cell/Inner Plexiform Layer Thickness and Their Combinational Index Using Artificial Intelligence
  
  Explore LWW Online Sep 1 2018 Ophthalmology
  
  Purpose: To evaluate the relationship between macular vessel density and ganglion cell to inner plexiform layer thickness (GCIPLT) and to compare their diagnostic performance. We attempted to develop a new combined parameter using an artificial neural network . Methods: A total of 173 subjects: 100 for the test and 73 for neural net training. The test group consisted of 32 healthy, 33 early, and 35 advanced glaucoma subjects. Macular GCIPLT and ...
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  Mentions: Topcon Medical Systems Pusan National University
12. Comparison of anterior segment optical coherence tomography findings in acanthamoeba keratitis and herpetic epithelial keratitis
  
  Explore 欢迎访问国际眼科杂志编辑部 Aug 28 2018 Ophthalmology
  
  This study is to investigate the characteristic features of Acanthamoeba keratitis (AK) that differentiating it from herpetic epithelial keratitis (HEK) using anterior segment optical coherence tomography (AS-OCT). Medical records of three eyes of each AK and herpetic keratitis who had AS-OCT examination were reviewed in this study. Slit-lamp biomicroscopy and AS-OCT was performed on the initial visit and on every follow-up visits in all patients. In all three AK cases ...
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  Mentions: Pusan National University
13. Deep brain optical coherence tomography angiography in mice: in vivo, noninvasive imaging of hippocampal formation
  
  Explore Nature Publishing Group Aug 2 2018 Neurology
  
  The hippocampus is associated with memory and navigation, and the rodent hippocampus provides a useful model system for studying neurophysiology such as neural plasticity. Vascular changes at this site are closely related to brain diseases, such as Alzheimers disease, dementia, and epilepsy. Vascular imaging around the hippocampus in mice may help to further elucidate the mechanisms underlying these diseases. Optical coherence tomography angiography (OCTA) is an emerging technology that can ...
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  Mentions: Pusan National University Kwan Seob Park Jun Geun Shin
14. Unfolding displacement measurement method for the aliasing interferometer signal of a wavelength-comb-swept laser
  
  Explore OSA | OSA Publishing Mar 5 2018 Tunable Sources
  
  We demonstrate an unfolding displacement measurement method to overcome the aliasing problem of wavelength-comb-swept laser (WCSL). Compared to the conventional wavelength-swept laser (WSL), the WCSL exhibits an extended coherence length, owing to the narrowing spectral linewidth of the etalon filter. However, the aliasing interference signal induces an unexpected back-bounced phenomenon during displacement measurement because of the discretely distributed comb-like periodic spectra of the etalon filter. By using the dual-reference interferometry ...
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  Mentions: Chang-Seok Kim Pusan National University Samsung
15. Comparable outcomes of intravascular ultrasound or optical coherence tomography-assisted percutaneous coronary intervention
  
  Explore atherosclerosis-journal.com Jan 26 2018 Cardiology
  
  Aim: The use of intravascular ultrasound (IVUS) or Optical coherence tomography (OCT) to guide stent placement in percutaneous coronary intervention (PCI) leads to better clinical outcomes than use of angiography guidance. We hypothesis which image-assisted PCI could lead better clinical outcomes in acute myocardial infarction (MI) patients. Methods: Among 12, 193 patients enrolled the Korean Acute Myocardial Infarction registry, 1,622 patients undergone image-assisted PCI were assigned to the IVUS-assisted ...
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  Mentions: Pusan National University
16. Reproducibility of Bruch's Membrane Opening-minimum Rim Width Measurements with Spectral Domain Optical Coherence Tomography
  
  Explore LWW Online Sep 26 2017 Ophthalmology
  
  Purpose: To evaluate the reproducibility of Bruch's membrane opening-minimum rim width (BMO-MRW) measurements obtained with Spectralis optical coherence tomography (OCT) in normal and glaucoma subjects. Methods: In total, 123 eyes from 123 subjects (65 healthy, 58 glaucoma subjects) were included. BMO-MRW measurements were repeated three times during the same visit using Spectralis OCT. The BMO points and internal limiting membrane were identified with automated software and corrected manually when ...
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  Mentions: Heidelberg Engineering Pusan National University
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