1. Kenji Yamashiro

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    1. Mentioned In 15 Articles

    2. Usefulness of Denoising Process to Depict Myopic Choroidal Neovascularisation Using a Single Optical Coherence Tomography Angiography Image

      Usefulness of Denoising Process to Depict Myopic Choroidal Neovascularisation Using a Single Optical Coherence Tomography Angiography Image
      Quality of single optical coherence tomography angiography (OCTA) images of myopic choroidal neovascularisation (mCNV) is poorer than in averaged images, although obtaining averaged images takes much time. This study evaluated the clinical usefulness of novel denoising process for depicting mCNV. This study included 20 eyes of 20 patients with mCNV. Ten en face images taken in a 33mm macular cube were obtained from outer-retina-to-choriocapillaris layer. Three image types were prepared ...
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    3. Optical Coherence Tomography Angiography to Estimate Retinal Blood Flow in Eyes with Retinitis Pigmentosa

      Optical Coherence Tomography Angiography to Estimate Retinal Blood Flow in Eyes with Retinitis Pigmentosa
      Ophthalmologists sometimes face difficulties in identifying the origin of visual acuity (VA) loss in a retinitis pigmentosa (RP) patient, particularly before cataract surgery: cataract or the retinal disease state. Therefore, it is important to identify the significant factors correlating with VA. Nowadays, retinal blood flow in superficial and deep layers can be estimated non-invasively using optical coherence tomography angiography (OCTA). We estimated blood flow per retinal layer by using OCTA ...
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    4. Increased Choroidal Vascularity in Central Serous Chorioretinopathy Quantified Using Swept-Source Optical Coherence Tomography

      Increased Choroidal Vascularity in Central Serous Chorioretinopathy Quantified Using Swept-Source Optical Coherence Tomography
      Purpose To investigate the choroidal vascular structural changes in eyes with central serous chorioretinopathy (CSC) by using swept-source optical coherence tomography (SS-OCT). Design Prospective cross-sectional study. Methods We prospectively examined 40 eyes of 34 consecutive patients with CSC. Three-dimensional choroidal images of the macular area, covering 3 3 mm and 6 6 mm, were obtained with SS-OCT. En face images of the microvasculature of the inner choroid and large choroidal ...
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    5. Detection of Myopic Choroidal Neovascularization Using Optical Coherence Tomography Angiography

      Detection of Myopic Choroidal Neovascularization Using Optical Coherence Tomography Angiography
      Purpose To assess whether optical coherence tomography angiography (OCTA) can be used as an alternative to conventional fundus fluorescein angiography (FFA) for the detection of myopic choroidal neovascularization (CNV) Design Validity and reliability analysis Methods Twenty-eight eyes of 26 consecutive Japanese patients with exudative lesions associated with pathological myopia were included in this institutional study. Myopic CNV was detected in 23 eyes of 22 patients; five eyes exhibited simple hemorrhage ...
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    6. Analysis of Fundus Shape in Highly Myopic Eyes by Using Curvature Maps Constructed from Optical Coherence Tomography

      Analysis of Fundus Shape in Highly Myopic Eyes by Using Curvature Maps Constructed from Optical Coherence Tomography
      Purpose To evaluate fundus shape in highly myopic eyes using color maps created through optical coherence tomography (OCT) image analysis. Methods We retrospectively evaluated 182 highly myopic eyes from 113 patients. After obtaining 12 lines of 9-mm radial OCT scans with the fovea at the center, the Bruchs membrane line was plotted and its curvature was measured at 1-m intervals in each image, which was reflected as a color topography ...
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    7. Dome-Shaped Macular Configuration: Longitudinal Changes in the Sclera and Choroid by Swept-Source Optical Coherence Tomography Over Two Years

      Dome-Shaped Macular Configuration: Longitudinal Changes in the Sclera and Choroid by Swept-Source Optical Coherence Tomography Over Two Years
      Purpose To study longitudinal changes in the posterior pole in eyes with dome-shaped macular configuration within the staphyloma. Design Prospective, longitudinal study. Methods We prospectively examined the macular area in 35 eyes (26 patients) with dome-shaped macular configuration and high myopia (mean spherical equivalent, 14.83 4.50 diopters) using swept-source optical coherence tomography. Scleral and choroidal thicknesses were measured at the fovea and four parafoveal locations 2000 m from ...
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    8. Macular Choroidal Thickness and Volume of Eyes with Reticular Pseudodrusen Using Swept-Source Optical Coherence Tomography

      Macular Choroidal Thickness and Volume of Eyes with Reticular Pseudodrusen Using Swept-Source Optical Coherence Tomography
      Purpose To investigate the choroidal thickness/volume of eyes with reticular pseudodrusen using high-penetration swept-source optical coherence tomography (SS-OCT) and to evaluate the choroidal vasculature changes using en face images. Design Prospective cross sectional study. Methods Thirty-eight eyes with reticular pseudodrusen and 14 normal eyes were studied with prototype SS-OCT. Eyes with reticular pseudodrusen were classified into 3 subgroups: eyes without late age-related macular degeneration (AMD) (group1), eyes with neovascular ...
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    9. Sensitivity and Specificity of Detecting Reticular Pseudodrusen in Multimodal Imaging in Japanese Patients

      Sensitivity and Specificity of Detecting Reticular Pseudodrusen in Multimodal Imaging in Japanese Patients
      Purpose: To identify reticular pseudodrusen (RPD) in age-related macular degeneration using multiple imaging modalities, including the blue channel image of fundus photography, infrared reflectance (IR), fundus autofluorescence, near-infrared fundus autofluorescence, confocal blue reflectance, indocyanine green angiography, and spectral-domain optical coherence tomography (SD-OCT), and to compare the sensitivities and specificities of these modalities for detecting RPD. Methods: This study included 220 eyes from 114 patients with newly diagnosed age-related macular degeneration ...
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    10. Macular Choroidal Thickness Measured by Swept Source Optical Coherence Tomography in Eyes with Inferior Posterior Staphyloma

      Macular Choroidal Thickness Measured by Swept Source Optical Coherence Tomography in Eyes with Inferior Posterior Staphyloma
      PURPOSE: To study the choroidal thickness in eyes with inferior posterior staphyloma (IPS) and to elucidate their role in the development of macular complications. METHODS: The macular area of 42 eyes of 32 patients with IPS was studied prospectively with swept source optical coherence tomography at 1,050 nm. Using a raster scan protocol with 512 128 A-scans, we produced a macular choroidal thickness map (6 6-mm2). RESULTS: Eyes with ...
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    11. Assessment of Macular Choroidal Thickness by Optical Coherence Tomography and Angiographic Changes in Central Serous Chorioretinopathy

      Assessment of Macular Choroidal Thickness by Optical Coherence Tomography and Angiographic Changes in Central Serous Chorioretinopathy
      Objective To investigate the relationship between macular choroidal thickness measured by high-penetrating swept-source optical coherence tomography (SS-OCT) and angiographic findings in central serous chorioretinopathy (CSC). Design Prospective cross-sectional case series. Participants and Controls Thirty-four patients with CSC (44 eyes) and 17 volunteer subjects (17 normal eyes). Methods All subjects underwent a comprehensive ophthalmologic and SS-OCT prototype examination. All patients with CSC also underwent simultaneous fluorescein angiography (FA) and indocyanine green ...
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    12. High-Resolution Imaging of Resolved Central Serous Chorioretinopathy Using Adaptive Optics Scanning Laser Ophthalmoscopy

      High-Resolution Imaging of Resolved Central Serous Chorioretinopathy Using Adaptive Optics Scanning Laser Ophthalmoscopy
      Objective To compare pathologic changes in photoreceptors in eyes with resolved central serous chorioretinopathy (CSC) seen on high-resolution images obtained by adaptive optics scanning laser ophthalmoscopy (AO SLO) with visual acuity (VA) and findings on spectral-domain optical coherence tomography (SD OCT). Design Observational case series. Participants Forty-five eyes of 38 patients with resolved CSC and 20 normal eyes of 20 volunteer subjects. Methods All patients underwent a full ophthalmologic examination ...
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    13. Association between Foveal Photoreceptor Integrity and Visual Outcome in Neovascular Age-related Macular Degeneration

      Purpose: To evaluate the correlation between visual outcome and foveal photoreceptor integrity after successful treatment of eyes with neovascular age-related macular degeneration (AMD).Design: Retrospective chart review.Methods: We retrospectively studied the medical records of 51 eyes of 51 patients with neovascular AMD who were treated successfully with photodynamic therapy (PDT). All eyes were followed-up for more than 24 months after the initial treatment. Using spectral-domain optical coherence tomography, the ...
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  2. About Kenji Yamashiro

    Kenji Yamashiro is with the Department of Ophthalmology and Visual Sciences at Kyoto University Graduate School of Medicine, Kyoto, Japan.