1. Articles from sang-wook kim

    1-7 of 7
    1. Comparison of optical coherence tomography–guided versus intravascular ultrasound–guided percutaneous coronary intervention: Rationale and design of a randomized, controlled OCTIVUS trial

      Comparison of optical coherence tomography–guided versus intravascular ultrasound–guided percutaneous coronary intervention: Rationale and design of a randomized, controlled OCTIVUS trial

      Background The clinical value of intracoronary imaging for percutaneous coronary intervention (PCI) guidance is well acknowledged. Intravascular ultrasound (IVUS) and optical coherence tomography (OCT) are the most commonly used intravascular imaging to guide and optimize PCI in day-to-day practice. However, the comparative effectiveness of IVUS-guided versus OCT-guided PCI with respect to clinical end points remains unknown. Methods and design The OCTIVUS study is a prospective, multicenter, open-label, parallel-arm, randomized trial comparing the effectiveness of 2 imaging-guided strategies in patients with stable angina or acute coronary syndromes undergoing PCI in Korea. A total of 2,000 patients are randomly assigned in ...

      Read Full Article
    2. Comparison of optical coherence tomography-guided versus intravascular ultrasound-guided percutaneous coronary intervention: Rationale and Design of a Randomized, controlled OCTIVUS trial

      Comparison of optical coherence tomography-guided versus intravascular ultrasound-guided percutaneous coronary intervention: Rationale and Design of a Randomized, controlled OCTIVUS trial

      The clinical value of intracoronary imaging for percutaneous coronary intervention (PCI) guidance is well acknowledged. Intravascular ultrasound (IVUS) and optical coherence tomography (OCT) are the most common use for intravascular imaging to guide and optimize PCI in day-to-day practice. However, the comparative effectiveness of IVUS-guided and OCT-guided PCI with respect to clinical end points remains unknown. Methods and Design The OCTIVUS study is a prospective, multicenter, open-label, parallel-arm, randomized trial comparing the effectiveness of two imaging-guided strategies in patients with stable angina or acute coronary syndromes undergoing PCI in Korea. A total of 2000 patients are randomly assigned in a ...

      Read Full Article
    3. Rediscover a Missed Culprit Lesion with Optical Coherence Tomography in Acute Coronary Syndrome: a Simple Stationary Pullback Method

      Rediscover a Missed Culprit Lesion with Optical Coherence Tomography in Acute Coronary Syndrome: a Simple Stationary Pullback Method

      A 54-year-old male was admitted to the hospital due to severe chest pain. He suffered from diabetes mellitus for 20 years and was an ex-smoker. The 12 leads electrocardiography showed ST-segment elevation in inferior leads. High sensitivity troponin level was elevated, and underwent coronary angiography. The echocardiogram showed basal inferior hypokinesia with normal left ventricular systolic function. The coronary angiography demonstrated an insignificant stenosis with vague plaque ulceration at the proximal portion of right coronary artery ( Figure 1A , asterisk). The automatic motorized pullback of optical coherence tomography (OCT) was performed at 10 mm/sec with simultaneous injection of a contrast ...

      Read Full Article
    4. A Comparison of Intravascular Imaging Modalities for Detection of Stent Struts in Acute Coronary Syndrome

      A Comparison of Intravascular Imaging Modalities for Detection of Stent Struts in Acute Coronary Syndrome

      Background We used optical coherence tomography (OCT) and intravascular ultrasound (IVUS) to assess the struts of implanted stents in patients with acute coronary syndrome (ACS). Methods A totle of 10,756 stent struts were analyzed with OCT in 42 patients of ACS. Of them, both of IVUS and OCT imaging were performed in 33 patients. Appearance of stent struts was classified as well apposed, buried, malapposed, and nondetectable, and the number of stent struts were counted by OCT and IVUS was compared. Results Most of stent struts were well apposed (78.1%, 8,407/10,756). However, malapposed struts were ...

      Read Full Article
    5. Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Elnuting Stent Implantation

      Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Elnuting Stent Implantation

      Background— Despite the enhanced properties of the second-generation drug-eluting stent (DES), its association with neoatherosclerosis has not been sufficiently evaluated. Therefore, we sought to evaluate and compare neoatherosclerosis in second-generation DESs to first-generation DESs. Methods and Results— A total of 212 DES-treated patients with >50% percent neointimal cross-sectional area stenosis were retrospectively enrolled from the Korean multicenter optical coherence tomography (OCT) registry. Within this population, 111 patients had a second-generation DES (40 zotarolimus, 36 everolimus, and 35 biolimus) and 101 patients had a first-generation (65 sirolimus and 36 paclitaxel) DES. Neoatherosclerosis on OCT was defined as neointima formation with the ...

      Read Full Article
    6. Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Eluting Stent Implantation

      Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Eluting Stent Implantation

      Background— Despite the enhanced properties of the second-generation drug-eluting stent (DES), its association with neoatherosclerosis has not been sufficiently evaluated. Therefore, we sought to evaluate and compare neoatherosclerosis in second-generation DESs to first-generation DESs. Methods and Results— A total of 212 DES-treated patients with >50% percent neointimal cross-sectional area stenosis were retrospectively enrolled from the Korean multicenter optical coherence tomography (OCT) registry. Within this population, 111 patients had a second-generation DES (40 zotarolimus, 36 everolimus, and 35 biolimus) and 101 patients had a first-generation (65 sirolimus and 36 paclitaxel) DES. Neoatherosclerosis on OCT was defined as neointima formation with the ...

      Read Full Article
    7. Nondestructive high-resolution soft-boundary profiling based on forward shadow diffraction

      Songky Moon, Juhee Yang, Sang-Bum Lee, Jeong-Bo Shim, Sang-Wook Kim, Jai-Hyung Lee, Kyungwon An Nondestructive noncontact high-resolution optical technique for profiling soft or fluidic boundary of an opaque object is presented. Our technique utilizes the fact that the angle width, the angular separation between two adjacent intensity minima in the forward shadow diffraction, is inversely ... [Opt. Express 16, 11007-11020 (2008)]
      Read Full Article
    1-7 of 7
  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. Topics in the News

    1. (4 articles) University of Ulsan
    2. (3 articles) Yonsei University
    3. (2 articles) Pusan National University
    4. (2 articles) Soo-Joong Kim
    5. (2 articles) Yangsoo Jang
    6. (2 articles) Myeong-Ki Hong
    7. (2 articles) Jung-Sun Kim
    8. (2 articles) Seung-Yul Lee
    9. (2 articles) Dong Hoon Choi
    10. (1 articles) Young-Guk Ko
    11. (1 articles) University of Southern California
    12. (1 articles) UC Irvine
    13. (1 articles) Qifa Zhou
    14. (1 articles) K. Kirk Shung
    15. (1 articles) Heidelberg Engineering
  3. Popular Articles

  4. Picture Gallery

    Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Eluting Stent Implantation Optical Coherence Tomographic Observation of In-Stent Neoatherosclerosis in Lesions With More Than 50% Neointimal Area Stenosis After Second-Generation Drug-Elnuting Stent Implantation A Comparison of Intravascular Imaging Modalities for Detection of Stent Struts in Acute Coronary Syndrome Rediscover a Missed Culprit Lesion with Optical Coherence Tomography in Acute Coronary Syndrome: a Simple Stationary Pullback Method Comparison of optical coherence tomography-guided versus intravascular ultrasound-guided percutaneous coronary intervention: Rationale and Design of a Randomized, controlled OCTIVUS trial Comparison of optical coherence tomography–guided versus intravascular ultrasound–guided percutaneous coronary intervention: Rationale and design of a randomized, controlled OCTIVUS trial Optical imaging techniques could offer non-invasive method to measure swelling within the brain, new study finds Using Optical Coherence Tomography as a Surrogate of Measurements of Intracranial Pressure in Idiopathic Intracranial Hypertension Endoscopic imaging in inflammatory bowel disease: current developments and emerging strategies 2D Ultrasonic Array-based Optical Coherence Elastography Optical coherence tomography angiography in diabetic retinopathy: an updated review Flow signal change in polyps after anti-vascular endothelial growth factor therapy