1. Kei Takayama

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    1. Mentioned In 7 Articles

    2. OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY OF THE FOVEAL AVASCULAR ZONE IN CHILDREN WITH A HISTORY OF TREATMENT-REQUIRING RETINOPATHY OF PREMATURITY

      OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY OF THE FOVEAL AVASCULAR ZONE IN CHILDREN WITH A HISTORY OF TREATMENT-REQUIRING RETINOPATHY OF PREMATURITY
      Purpose: To examine the characteristics of the foveal vascular structure of patients with retinopathy of prematurity (ROP) by optical coherence tomography angiography. Methods: Ten patients with a history of laser photocoagulation or cryopexy treatment for Stage 3 (Zone II) ROP and 10 normal subjects (controls) were included. Foveal avascular zone, vessel density, vessel length, and vascular diameter index were measured by optical coherence tomography angiography using the 3 3-mm Early ...
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    3. A Novel Method to Detect Local Ganglion Cell Loss in Early Glaucoma Using Spectral-Domain Optical Coherence Tomography

      A Novel Method to Detect Local Ganglion Cell Loss in Early Glaucoma Using Spectral-Domain Optical Coherence Tomography
      Purpose: To test the glaucoma-discriminating ability of a new method for detecting local ganglion cell loss using spectral-domain optical coherence tomography (SD-OCT). Methods: This study included 58 eyes from glaucomatous patients and 48 healthy eyes from volunteers. The combined thickness of the ganglion cell layer and inner plexus layer (GCIPL) was measured on a macular cube scan (200 200) in Cirrus HD-OCT. GCIPL thicknesses on 360 spokes extending from the ...
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    4. Assessment of acute injuries and chronic intimal thickening of the radial artery after transradial coronary intervention by optical coherence tomography

      Assessment of acute injuries and chronic intimal thickening of the radial artery after transradial coronary intervention by optical coherence tomography
      Aims Transradial coronary intervention (TRI) introduces a trauma to the radial artery (RA), possibly influencing quality as a bypass conduit if subsequently used. We sought to determine the acute and chronic effects of TRI on the RA by optical coherence tomography (OCT). Methods and results Immediately after TRI completion, 73 RAs in 69 patients were examined. The sheath was pulled back 2 cm distal to the puncture site, and OCT ...
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    5. Correlation Between Plaque Rupture and Morphological Features of Thin Cap Fibroatheroma in Acute Coronary Syndrome Assessed by Optical Coherence Tomography

      ...significant correlation with the presence of plaque rupture. Taishi Yonetsu; Tsunekazu Kakuta; Tetsumin Lee; Kei Takayama; Ken Kakita; Kentarou Takahashi; Ginga Yamamoto Tsuchiura Kyodo General Hosp, Tsuchiura, Japan Ba...
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    6. The Assessment of Acute Injuries and Chronic Intimal Thickening of the Radial Artery After Transradial Intervention by Optical Coherence Tomography

      ...nd effort should be made to reduce trauma when choosing TRI. Taishi Yonetsu; Tsunekazu Kakuta; Tetsumin Lee; Kei Takayama; Ken Kakita; Kentaro Takahashi; Ginga Yamamoto Tsuchiura Kyodo General Hosp, Tsuchiura, Japan Bac...
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  2. About Kei Takayama

    Kei Takayama is at Tsuchiura Kyodo General Hospital in Japan.