1. Yonsei University

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    1. Mentioned In 218 Articles

    2. Skin Imaging using Ultrasound Imaging, Optical Coherence Tomography, Confocal Microscopy, and Two-Photon Microscopy in Cutaneous Oncology

      Skin Imaging using Ultrasound Imaging, Optical Coherence Tomography, Confocal Microscopy, and Two-Photon Microscopy in Cutaneous Oncology
      With the recognition of dermoscopy as a new medical technology and its available fee assessment in Korea comes an increased interest in imaging-based dermatological diagnosis. For the dermatologist, who treats benign tumors and malignant skin cancers, imaging-based evaluations can assist with determining the surgical method and future follow-up plans. The identification of the tumors location and the existence of blood vessels can guide safe treatment and enable the use of ...
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    3. Automated accurate lumen segmentation using L-mode interpolation for three-dimensional intravascular optical coherence tomography

      Automated accurate lumen segmentation using L-mode interpolation for three-dimensional intravascular optical coherence tomography
      Intravascular optical coherence tomography (IVOCT) lumen-based computational flow dynamics (CFD) enables physiologic evaluations such as of the fractional flow reserve (FFR) and wall sheer stress. In this study, we developed an accurate, time-efficient method for extracting lumen contours of the coronary artery. The contours of cross-sectional images containing wide intimal discontinuities due to guide wire shadowing and large bifurcations were delineated by utilizing the natural longitudinal lumen continuity of the ...
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    4. Impact of late stent malapposition after drug-eluting stent implantation on long-term clinical outcomes

      Impact of late stent malapposition after drug-eluting stent implantation on long-term clinical outcomes
      Background and aims The impact of late drug-eluting stent (DES) malapposition detected by optical coherence tomography (OCT) on long-term clinical outcomes has not been clearly established. We evaluated long-term clinical outcomes of late stent malapposition (LSM) detected by OCT in a qualified study population. Methods A total of 428 patients were selected from previous randomized OCT studies that evaluated the degree of strut coverage of different DESs at a 312-month ...
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    5. Severe acute stent malapposition follow-up: 3-month and 12-month serial quantitative analyses by optical coherence tomography

      Severe acute stent malapposition follow-up: 3-month and 12-month serial quantitative analyses by optical coherence tomography
      Background Optical coherence tomography (OCT) was used to assess serial changes in severe acute stent malapposition (ASM) after drug-eluting stent (DES) implantation. Methods The maximal depth and axial lengths of ASM after DES implantation were serially quantified at percutaneous coronary intervention (PCI), and at 3 and 12-month follow-up, for 100 lesions in 96 patients. Severe ASM was defined as a maximal malapposed depth 400 m or maximal malapposed axial length ...
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    6. Severe acute stent malapposition follow-up: 3-month and 12-month serial quantitative analyses by optical coherence tomography

      Severe acute stent malapposition follow-up: 3-month and 12-month serial quantitative analyses by optical coherence tomography
      Background Optical coherence tomography (OCT) was used to assess serial changes in severe acute stent malapposition (ASM) after drug-eluting stent (DES) implantation. Methods The maximal depth and axial lengths of ASM after DES implantation were serially quantified at percutaneous coronary intervention (PCI), and at 3 and 12-month follow-up, for 100 lesions in 96 patients. Severe ASM was defined as a maximal malapposed depth 400 m or maximal malapposed axial length ...
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    7. Surgical outcome and prognostic factors influencing visual acuity in myopic foveoschisis patients

      Surgical outcome and prognostic factors influencing visual acuity in myopic foveoschisis patients
      Background To analyze the optical coherence tomography (OCT) characteristics and visual outcome of vitrectomy in myopic foveoschisis (MF) patients and identify prognostic factors. Methods This study is a retrospective clinical cohort study in tertiary care hospital. Thirty-two eyes of 32 patients who underwent MF-related vitrectomy in were investigated retrospectively. Best-corrected visual acuity (BCVA) measured at 1 year post surgery and changes in central foveal thickness (CFT) and co-existing macular pathologies ...
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    8. Long‐Term Clinical Outcomes of Late Stent Malapposition Detected by Optical Coherence Tomography After Drug‐Eluting Stent Implantation

      Long‐Term Clinical Outcomes of Late Stent Malapposition Detected by Optical Coherence Tomography After Drug‐Eluting Stent Implantation
      Background The relationship between late stent malapposition (LSM) and adverse cardiovascular events is controversial. Studies are needed to evaluate long‐term (5 years) clinical outcomes of LSM detected by optical coherence tomography (OCT) after drug‐eluting stent implantation. Methods and Results We investigated long‐term clinical outcomes of OCT‐detected LSM in 351 patients who received drug‐eluting stents and were examined by both poststent and follow‐up OCT (17560 ...
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    9. Determination of the Duration of the Dual Antiplatelet Therapy by the Degree of the Coverage of The Struts on Optical Coherence Tomography From the Randomized Comparison Between Everolimus-eluting Stents Versus Biolimus A9-eluting Stents

      Determination of the Duration of the Dual Antiplatelet Therapy by the Degree of the Coverage of The Struts on Optical Coherence Tomography From the Randomized Comparison Between Everolimus-eluting Stents Versus Biolimus A9-eluting Stents
      This study is a retrospective and prospective follow-up study of patients who were participating in a randomized comparative study (DETECT-OCT trial) to determine the duration of dual antiplatelet therapy for neointimal hyperplasia after Biolimus stent and Everolimus stent insertion . The primary objective of this study was to determine the duration of double antiplatelet therapy (DAPT) based on OCT results at 3 months after percutaneous coronary intervention with OCT guide and ...
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    10. Early Follow-Up Optical Coherence Tomographic Findings of Significant Drug-Eluting Stent Malapposition

      Early Follow-Up Optical Coherence Tomographic Findings of Significant Drug-Eluting Stent Malapposition
      Background: Using optical coherence tomography, we evaluated early follow-up findings of significant stent malapposition (SSM) in patients treated with second-generation drug-eluting stent. Methods and Results: From the DETECT-OCT randomized trial (Determination of the Duration of the Dual Antiplatelet Therapy by the Degree of the Coverage of the Struts on Optical Coherence Tomography From the Randomized Comparison Between Everolimus- Versus Biolimus-Eluting Stent), a total of 386 patients (390 lesions) who underwent ...
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    11. Associations Between Individual Retinal Layer Thicknesses And Diabetic Peripheral Neuropathy Using Retinal Layer Segmentation Analysis

      Associations Between Individual Retinal Layer Thicknesses And Diabetic Peripheral Neuropathy Using Retinal Layer Segmentation Analysis
      Purpose: To evaluate clinical correlations between the thicknesses of individual retinal layers in the foveal area of diabetic patients and the presence of diabetic peripheral neuropathy (DPN). Methods: This retrospective, observational, cross-sectional study enrolled a total of 120 eyes from 120 patients. The eyes were divided into 3 groups: normal controls (n = 42 eyes), patients with diabetes mellitus (n = 42 eyes) but no DPN, and patients with diabetes mellitus and ...
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    12. Optical coherence tomography findings predictive of response to treatment in diabetic macular edema

      Optical coherence tomography findings predictive of response to treatment in diabetic macular edema
      Objective To evaluate the short-term efficacy of intravitreal bevacizumab (IVB) and posterior sub-tenon triamcinolone injections (PSTI) on the basis of spectral-domain optical coherence tomography (SD-OCT) patterns in diabetic macular edema (DME). Methods We retrospectively reviewed 73 eyes of 73 patients with DME. Based on the presence of serous retinal detachment (SRD), eyes were categorized into two groups, and either IVB or PSTI treatment was performed. Central macular thickness (CMT) and ...
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    13. Nomogram Using Optical Coherence Tomography and Visual Field Parameters to Predict Brain Lesions in Patients with Bitemporal Hemianopia

      Nomogram Using Optical Coherence Tomography and Visual Field Parameters to Predict Brain Lesions in Patients with Bitemporal Hemianopia
      Purpose : This study aims to develop a nomogram to predict brain lesions in patients with complete or incomplete bitemporal hemianopia by combining results from optical coherence tomography (OCT) and visual field (VF) testing. Material and Methods : We reviewed the medical records of patients who underwent magnetic resonance imaging (MRI) to identify brain lesions due to bitemporal hemianopia between January 2010 and March 2017, retrospectively. The patients were divided into two ...
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    14. Diagnostic Ability of Swept-Source and Spectral-Domain Optical Coherence Tomography for Glaucoma

      Diagnostic Ability of Swept-Source and Spectral-Domain Optical Coherence Tomography for Glaucoma
      Purpose To compare the diagnostic abilities of swept-source optical coherence tomography (OCT) [Deep Range Imaging OCT-1 (DRI-OCT)] and spectral-domain OCT (Cirrus HD-OCT) for glaucoma in Korean adults. Materials and Methods This retrospective study involved measuring peripapillary retinal nerve fiber layer (PP-RNFL) thickness, full macular thickness, and ganglion cell-inner plexiform layer (GC-IPL) thickness on two different OCT systems. We used three-dimensional optic disc scanning of DRI-OCT and included 12 clock-hour sectors ...
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    15. Optical Coherence Tomography-guided Coronary Intervention and Optimal Use of Dual Anti-Platelet Therapy In Patients With Complex Lesions (OCCUPI Trial)

      Optical Coherence Tomography-guided Coronary Intervention and Optimal Use of Dual Anti-Platelet Therapy In Patients With Complex Lesions (OCCUPI Trial)
      There is no definite conclusive work about optimal duration of DAPT after PCI of complex lesions, which have been left at each operator's discretion. It is needed to be investigated how optimal duration of dual antiplatelet therapy will be decided in complex lesions. Also, the benefit of OCT-guided PCI assuming better stent optimization should be determined in complex PCI. In the study, we will explore the clinical implication of ...
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    16. 1-15 of 218 1 2 3 4 ... 13 14 15 »
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  2. About Yonsei University

    Yonsei University

    Yonsei University. As the oldest private university in Korea, Yonsei University was first established in 1885.  Yonsei’s main campus is ensconced in a spacious, picturesque and natural setting that is located minutes away from of the economic, political, and cultural centers of Seoul's metropolitan downtown. Our 3,500 eminent faculty members conduct cutting-edge research across all academic disciplines. Our 18 graduate schools, 19 colleges and 131 subsidiary institutions plays host to a student body that consists of the most selective pool of high school and university graduates from around the world.  Yonsei University College of Medicine is the medical college associated with Yonsei  University.