1. Taiji Sakamoto

    0 Comments Leave a Comment

    1-15 of 28 1 2 »
    1. Mentioned In 28 Articles

    2. Anterior Segment Optical Coherence Tomography in Ocular Argyrosis

      Anterior Segment Optical Coherence Tomography in Ocular Argyrosis
      Purpose The current study investigated differences in the peripapillary and macular choroidal areas between patients with primary open-angle glaucoma (POAG) and healthy controls because the choroid may potentially play a role in glaucoma pathophysiology. Methods We assessed 57 healthy controls and 42 POAG patients in a cross-sectional comparative study. We used enhanced depth imaging optical coherence tomography (EDI-OCT) and then converted the luminal and interstitial areas to binary images using ...
      Read Full Article
    3. Assessment of primary open-angle glaucoma peripapillary and macular choroidal area using enhanced depth imaging optical coherence tomography

      Assessment of primary open-angle glaucoma peripapillary and macular choroidal area using enhanced depth imaging optical coherence tomography
      Purpose The current study investigated differences in the peripapillary and macular choroidal areas between patients with primary open-angle glaucoma (POAG) and healthy controls because the choroid may potentially play a role in glaucoma pathophysiology. Methods We assessed 57 healthy controls and 42 POAG patients in a cross-sectional comparative study. We used enhanced depth imaging optical coherence tomography (EDI-OCT) and then converted the luminal and interstitial areas to binary images using ...
      Read Full Article
    4. Correlations Between Choroidal Structures And Visual Functions In Eyes With Retinitis Pigmentosa

      Correlations Between Choroidal Structures And Visual Functions In Eyes With Retinitis Pigmentosa
      Purpose: To investigate the choroidal structures in the enhanced depth imaging optical coherence tomographic images in eyes with retinitis pigmentosa (RP) and to determine correlations between the choroidal structures and visual functions. Methods: The enhanced depth imaging optical coherence tomographic images of 100 eyes with typical RP and 60 age-, sex-, and axial lengthmatched normal eyes were binarized using ImageJ. The cross-sectional luminal and stromal areas of the inner and ...
      Read Full Article
    5. Systemic and Ocular Determinants of Choroidal Structures on Optical Coherence Tomography of Eyes with Diabetes and Diabetic Retinopathy

      Systemic and Ocular Determinants of Choroidal Structures on Optical Coherence Tomography of Eyes with Diabetes and Diabetic Retinopathy
      Knowledge of the choroidal structures in eyes with diabetes and diabetic retinopathy (DR) should provide information on the pathogenesis of DR. A prospective study was performed to determine the systemic and ocular factors that affect the choroidal structures in eyes with diabetes. Two-hundred consecutive diabetic subjects consisted of 160 treatment-nave patients with different stages of DR and 40 patients with proliferative DR with prior panretinal photocoagulation (PRP). All underwent blood ...
      Read Full Article
      Mentions: Taiji Sakamoto
    6. Automated segmentation of en face choroidal images obtained by optical coherent tomography by machine learning

      Automated segmentation of en face choroidal images obtained by optical coherent tomography by machine learning
      Purpose To develop an automated method to segment the choroidal layers of en face optical coherent tomography (OCT) images by machine learning. Study design A cross-sectional, prospective study of 276 eyes of 181 healthy subjects. Methods OCT en face images of the choroid were obtained every 2.6 m from the retinal pigment epithelium (RPE) to the chorioscleral border. The images at the start of the choriocapillaris, start of Sattlers ...
      Read Full Article
      Mentions: Taiji Sakamoto
    7. Objective evaluation of size and shape of superficial foveal avascular zone in normal subjects by optical coherence tomography angiography

      Objective evaluation of size and shape of superficial foveal avascular zone in normal subjects by optical coherence tomography angiography
      This study was conducted to investigate the size and shape of the foveal avascular zone (FAZ) determined by optical coherence tomography angiography (OCTA) and the relationship of the size and shape to the clinical findings in normal subjects. This was a cross-sectional study with seventy eyes of 70 volunteers. The size of the superficial FAZs were assessed by its area, length of perimeter, and Ferets diameter, and the shape by ...
      Read Full Article
      Mentions: Taiji Sakamoto
    8. Evaluation of Shape of Foveal Avascular Zone by Optical Coherence Tomography Angiography in Eyes With Branch Retinal Vein Occlusion

      Evaluation of Shape of Foveal Avascular Zone by Optical Coherence Tomography Angiography in Eyes With Branch Retinal Vein Occlusion
      Purpose: To determine the relationship between morphological parameters of the foveal avascular zone (FAZ) in the optical coherence tomography angiographic (OCTA) images and the best-corrected visual acuity (BCVA) in branch retinal vein occlusion (BRVO). Methods: This was a retrospective cross-sectional study. Eyes with BRVO without apparent macular edema were studied. The superficial FAZ in 3 3 mm OCTA images were delineated manually. The size and shape, the circularity and axial ...
      Read Full Article
      Mentions: Taiji Sakamoto
    9. Comparison of Choroidal Vascularity Markers on Optical Coherence Tomography Using Two-Image Binarization Techniques

      Comparison of Choroidal Vascularity Markers on Optical Coherence Tomography Using Two-Image Binarization Techniques
      Purpose : To compare the agreement between optical coherence tomography (OCT)-based choroidal vascularity markers measured by two previously reported image binarization techniques. Methods : Spectral-domain OCT using enhanced-depth imaging was performed in 100 eyes from 52 normal subjects. Choroidal images were binarized to luminal area and stromal area using two different algorithms. Choroidal vascularity marker was defined as the ratio of luminal area to total choroidal area and they were termed ...
      Read Full Article
      Mentions: Taiji Sakamoto
    10. Semi-automated software to measure luminal and stromal areas of choroid in optical coherence tomographic images

      Semi-automated software to measure luminal and stromal areas of choroid in optical coherence tomographic images
      Purpose To determine the capabilities of EyeGround software in measuring the choroidal cross sectional areas in optical coherence tomographic (OCT) images. Study design Cross sectional, prospective study. Methods The cross-sectional area of the subfoveal choroid within a 1500 m diameter circle centered on the fovea was measured both with and without using the EyeGround software in the OCT images. The differences between the evaluation times and the results of the ...
      Read Full Article
      Mentions: Taiji Sakamoto
    11. Correlations between local peripapillary choroidal thickness and axial length, optic disc tilt, and papillo-macular position in young healthy eyes

      Correlations between local peripapillary choroidal thickness and axial length, optic disc tilt, and papillo-macular position in young healthy eyes
      Optical coherence tomography (OCT) has made it possible for clinicians to measure the peripapillary choroidal thickness (ppCT) noninvasively in various ocular diseases. However, the ocular factors associated with the ppCT have not been conclusively determined. The purpose of this study was to determine the relationship between the local ppCT and the axial length, optic disc tilt, and the angle of the papillo-macular position (PMP) in healthy eyes. This was a ...
      Read Full Article
    12. Choroidal Structure in Children with Anisohypermetropic Amblyopia Determined by Binarization of Optical Coherence Tomographic Images

      Choroidal Structure in Children with Anisohypermetropic Amblyopia Determined by Binarization of Optical Coherence Tomographic Images
      Purpose To compare the choroidal structure of the subfoveal area in the eyes of children with anisohypermetropic amblyopia to that of the fellow eyes and to age-matched controls using a binarization method of the images obtained by enhanced depth imaging optical coherence tomography (EDI-OCT). Methods This study was performed at Nara Medical University Hospital, Tokushima University Hospital, and Kagoshima University Hospital, Japan. Forty amblyopic eyes with anisohypermetropic amblyopia and their ...
      Read Full Article
    13. Structural Changes of Inner and Outer Choroid in Central Serous Chorioretinopathy Determined by Optical Coherence Tomography

      Structural Changes of Inner and Outer Choroid in Central Serous Chorioretinopathy Determined by Optical Coherence Tomography
      Purpose To determine the structural changes of the choroid in eyes with central serous chorioretinopathy (CSC) by enhanced depth imaging optical coherence tomography (EDI-OCT). Methods A retrospective comparative study was performed at two academic institutions. Forty eyes with CSC, their fellow eyes, and 40 eyes of age-matched controls were studied. Subfoveal cross sectional EDI-OCT images were recorded, and the hypo reflective and hyperreflective areas of the inner and outer choroid ...
      Read Full Article
      Mentions: Taiji Sakamoto
    14. Binarization of enhanced depth imaging optical coherence tomographic images of an eye with Wyburn-Mason syndrome: a case report

      Binarization of enhanced depth imaging optical coherence tomographic images of an eye with Wyburn-Mason syndrome: a case report
      Background To report a thicker choroid and larger choroidal luminal area in an eye with Wyburn-Mason syndrome. To the best of our knowledge, this is the first report demonstrating an increase in the choroidal thickness and the luminal area in a case of Wyburn-Mason syndrome. In addition, we report the changing appearance of retinal arteriovenous malformations over a 16-year period. Case presentation A 27-year-old woman, who was diagnosed with Wyburn-Mason ...
      Read Full Article
    15. Blood Components and OCT Reflectivity Evaluated in Animal Model

      Blood Components and OCT Reflectivity Evaluated in Animal Model
      Background/purpose : To see the relationship between blood components and optical coherence tomography ( OCT ) reflectivity using an animal model in which the aqueous humor was substituted by different experimental solutions without changing the integrity of the retina. Materials and methods : The aqueous humor of an enucleated swine eye was replaced with plasma obtained from healthy volunteers. The OCT reflectivity of the anterior chamber filled with each plasma was calculated from ...
      Read Full Article
      Mentions: Taiji Sakamoto
    16. 1-15 of 28 1 2 »
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. About Taiji Sakamoto

    Taiji Sakamoto is with the Department of Ophthalmology at the Kagoshima University Graduate School of Medical and Dental Sciences in Kagoshima, Japan.