R
Ryo Okubo
Researcher at Toho University
Publications - 22
Citations - 114
Ryo Okubo is an academic researcher from Toho University. The author has contributed to research in topics: Medicine & Internal medicine. The author has an hindex of 6, co-authored 15 publications receiving 80 citations.
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Journal ArticleDOI
Plaque Composition and No-Reflow Phenomenon During Percutaneous Coronary Intervention of Low-Echoic Structures in Grayscale Intravascular Ultrasound
TL;DR: Lesions with low- echoic structures in grayscale IVUS had high plaque vulnerability and were more prevalent in ACS patients, positive remolding, and VH-TCFAs, and they had more frequent no-reflow phenomenon during PCI than lesions without low-echoic structures.
Journal ArticleDOI
Assessment of Angiographic Coronary Calcification and Plaque Composition in Virtual Histology Intravascular Ultrasound
Hideo Amano,Takanori Ikeda,Mikihito Toda,Ryo Okubo,Takayuki Yabe,Makiko Koike,Daiga Saito,Junichi Yamazaki +7 more
TL;DR: Lesions with spotty calcification was highly vulnerable in VH-IVUS and extensive plaque calcification with angiographic calcification had more dense calcium than those without angiography calcification.
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Pericoronary adipose tissue ratio is a stronger associated factor of plaque vulnerability than epicardial adipose tissue on coronary computed tomography angiography
Ryo Okubo,Rine Nakanishi,Mikihito Toda,Daiga Saito,Ippei Watanabe,Takayuki Yabe,Hideo Amano,Tatsushi Hirai,Takanori Ikeda +8 more
TL;DR: The results support the important concept of local effects of cardiac adipose tissue on plaque vulnerability, and whether the PAT ratio is predictive of vulnerable plaques on CCTA or echo-attenuated plaque on IVUS.
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Prognostic Significance of Serum Indoxyl Sulfate and Albumin for Patients with Cardiovascular Disease.
Ippei Watanabe,Junko Tatebe,Takahiro Fujii,Ryota Noike,Daiga Saito,Hideki Koike,Takayuki Yabe,Ryo Okubo,Rine Nakanishi,Hideo Amano,Mikihito Toda,Takanori Ikeda,Toshisuke Morita +12 more
TL;DR: A lower albumin level adds potentiating effects on IS as a prognostic factor for cardiovascular disease and significantly conferred an additive value to LVEF for predicting mortality.
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Comparison of Coronary Intimal Plaques by Optical Coherence Tomography in Arteries With Versus Without Internal Running Vasa Vasorum
Hideo Amano,Masayuki Koizumi,Ryo Okubo,Takayuki Yabe,Ippei Watanabe,Daiga Saito,Mikihito Toda,Takanori Ikeda +7 more
TL;DR: Plaques with internal running VV in OCT had high plaque vulnerability with more intimal laceration, lipid-rich plaque, plaque rupture, thin-cap fibroatheroma, macrophage accumulation, and intraluminal thrombus, and they had high incidence of slow flow after stent implantation.