1. Shigeho Takarada

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    1. Mentioned In 32 Articles

    2. Coronary Superficial and Spotty Calcium Deposits in Culprit Coronary Lesions of Acute Coronary Syndrome as Determined by Optical Coherence Tomography

      Coronary Superficial and Spotty Calcium Deposits in Culprit Coronary Lesions of Acute Coronary Syndrome as Determined by Optical Coherence Tomography
      ...n Corresponding author: Tel: (+81) 73-447-2300; fax: (+81) 73-441-0814. email address , * Takashi Kubo, MD, * Shigeho Takarada, MD, * Hironori Kitabata, MD, * Yasushi Ino, MD, * Takashi Tanimoto, MD, * Kenichi Komukai, M...
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    3. Effect of strut thickness on neointimal atherosclerotic change over an extended follow-up period (≥4 years) after bare-metal stent implantation: Intracoronary optical coherence tomography examination

      Effect of strut thickness on neointimal atherosclerotic change over an extended follow-up period (≥4 years) after bare-metal stent implantation: Intracoronary optical coherence tomography examination

      Background Neointima inside the bare-metal stents (BMSs) can transform into atherosclerotic tissue during an extended follow-up because of a persistent inflammatory reaction to the metal. We sought to investigate whether strut thickness may impact on the atherosclerotic change in neointima 4 years or more after BMS implantation using optical coherence tomography. Methods Forty-six stented lesions of 41 patients with BMS ≥4 years after implantation who underwent optical coherence tomography were enrolled in the study. The strut was defined as thin when less than 100 μm and thick when ≥100 μm. According to these criteria, stents were divided into 2 groups ...

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    4. Consensus Standards for Acquisition, Measurement, and Reporting of Intravascular Optical Coherence Tomography Studies: A Report From the International Working Group for Intravascular Optical Coherence Tomography Standardization and Validation

      Consensus Standards for Acquisition, Measurement, and Reporting of Intravascular Optical Coherence Tomography Studies: A Report From the International Working Group for Intravascular Optical Coherence Tomography Standardization and Validation
      ...ei Shimada, MD, Toshiro Shinke, MD, Junya Shite, MD, Eliot Siegel, MD, Shinjo Sonada, MD, Melissa Suter, PhD, Shigeho Takarada, MD, PhD, Atsushi Tanaka, MD, PhD, Mitsuyasu Terashima, MD, Thim Troels, MD, PhD, Shiro Uemur...
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    5. Comparison of Contrast Media and Low-Molecular-Weight Dextran for Frequency-Domain Optical Coherence Tomography

      Comparison of Contrast Media and Low-Molecular-Weight Dextran for Frequency-Domain Optical Coherence Tomography

      Although an intracoronary frequency-domain optical coherence tomography (FD-OCT) system overcomes several limitations of the time-domain OCT (TD-OCT) system, the former requires injection of contrast media for image acquisition. The increased total amount of contrast media for FD-OCT image acquisition may lead to the impairment of renal function. The safety and usefulness of the non-occlusion method with low-molecular-weight dextran L (LMD-L) via a guiding catheter for TD-OCT image acquisition have been reported previously. The aim of the present study was to compare the image quality and quantitative measurements between contrast media and LMD-L for FD-OCT image acquisition in coronary stented lesions ...

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    6. Conformational Change in Coronary Artery Structure Assessed by Optical Coherence Tomography in Patients With Vasospastic Angina

      Conformational Change in Coronary Artery Structure Assessed by Optical Coherence Tomography in Patients With Vasospastic Angina
      Objectives The aim of this study was to investigate the conformational change of arterial structure in the vasospastic lesion with optical coherence tomography. Background Coronary artery spasm plays an important role in the pathogenesis of ischemic heart diseases. The conformational change of each arterial layer during vasospasm has not been studied in detail. Methods We assessed 19 coronary arteries (10 spasm and 9 nonspasm lesions) with optical coherence tomography during the provocation test for coronary spasm. An intimal bump was defined as 1 or more intimal projections into the lumen that disappeared after the administration of nitroglycerine (NTG). Intimal gathering ...
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    7. Difference of Culprit Lesion Morphologies Between ST-Segment Elevation Myocardial Infarction and Non-ST-Segment Elevation Acute Coronary Syndrome: An Optical Coherence Tomography Study

      Difference of Culprit Lesion Morphologies Between ST-Segment Elevation Myocardial Infarction and Non-ST-Segment Elevation Acute Coronary Syndrome: An Optical Coherence Tomography Study
      ...MD, PhD, Akio Kuroi, MD, Hiroto Tsujioka, MD, Hideyuki Ikejima, MD, Keishi Okouchi, MD, Manabu Kashiwagi, MD, Shigeho Takarada, MD, PhD, Hironori Kitabata, MD, Takashi Tanimoto, MD, Kenichi Komukai, MD, Kohei Ishibashi, ...
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    8. Data on heart disease described by researchers at Wakayama Medical University, Department of Cardiovascular Medicine

      Data on heart disease described by researchers at Wakayama Medical University, Department of Cardiovascular Medicine
      A new study, 'The effect of lipid and inflammatory profiles on the morphological changes of lipid-rich plaques in patients with non-ST-segment elevated acute coronary syndrome: follow-up study by optical coherence tomography and intravascular ultrasound,' is now available. "The aim of this study was to determine the relationship between the morphological changes of nonculprit lipid-rich plaques and several clinical profiles in patients with non-ST-segment elevated acute coronary syndrome (NSTEACS). Identification of coronary lesion with morphological characteristics of rupture-prone plaques is still difficult," scientists in Wakayama, Japan report.
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    9. Clinical Classification and Plaque Morphology Determined by Optical Coherence Tomography in Unstable Angina Pectoris

      Clinical Classification and Plaque Morphology Determined by Optical Coherence Tomography in Unstable Angina Pectoris
      Unstable angina pectoris (UAP) is categorized with the Braunwald classification. However, the association of clinical presentation and plaque structure/function has not yet been elucidated in relation to cause. We used optical coherence tomography to investigate this relation. One hundred fifteen patients with primary UAP were categorized according to the Braunwald classification. Patients with class I UAP had the highest frequency of ulcers without fibrous cap disruption (p = 0.003) and the smallest minimum lumen area (class I, median 0.70 mm2, quartiles 1 to 3 0.42 to 1.00; class II, 1.80 mm2, 1.50 to 2 ...
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    10. The Effect of Lipid and Inflammatory Profiles on the Morphological Changes of Lipid-Rich Plaques in Patients With Non-ST-Segment Elevated Acute Coronary Syndrome: Follow-Up Study by Optical Coherence Tomography and Intravascular Ultrasound

      The Effect of Lipid and Inflammatory Profiles on the Morphological Changes of Lipid-Rich Plaques in Patients With Non-ST-Segment Elevated Acute Coronary Syndrome: Follow-Up Study by Optical Coherence Tomography and Intravascular Ultrasound
      ...owering therapy with statin has the potential to stabilize these parameters by both plaque reduction and FCT. Shigeho Takarada, MD, PhD, Toshio Imanishi, MD, PhD, Kohei Ishibashi, MD, Takashi Tanimoto, MD, Kenichi Komuka...
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    11. Relation of Microchannel Structure Identified by Optical Coherence Tomography to Plaque Vulnerability in Patients With Coronary Artery Disease

      Relation of Microchannel Structure Identified by Optical Coherence Tomography to Plaque Vulnerability in Patients With Coronary Artery Disease
      Increased neovascularization in atherosclerotic plaques is associated with plaque vulnerability. The high resolution of optical coherence tomography (OCT) might provide a chance to directly visualize plaque neovascularization in vivo. The aim of the present study was to investigate the relation between microchannels in culprit plaques identified by OCT and plaque vulnerability in patients with coronary artery disease. A total of 63 consecutive patients with coronary artery disease who had undergone both OCT and intravascular ultrasound before any interventions to examine culprit lesion morphologies were enrolled. Microchannel was defined as a no-signal tubuloluminal structure on the cross-sectional optical coherence tomographic image ...
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    12. 1-15 of 32 1 2 »
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  2. About Shigeho Takarada

    Shigeho Takarada is at the department of Cardiovascular Medicine, Wakayama Medical University.