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328 results on '"Suzuki, Masahito"'

1. Virtual Heart Models Help Elucidate the Role of Border Zone in Sustained Monomorphic Ventricular Tachycardia

Author

Castañeda, Eduardo, Suzuki, Masahito, Ashikaga, Hiroshi, Lluch, Èric, Meister, Felix, Mihalef, Viorel, Audigier, Chloé, Maier, Andreas, Halperin, Henry, Passerini, Tiziano, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Greenspan, Hayit, editor, Madabhushi, Anant, editor, Mousavi, Parvin, editor, Salcudean, Septimiu, editor, Duncan, James, editor, Syeda-Mahmood, Tanveer, editor, and Taylor, Russell, editor

Published
2023
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3. Cardiac‐gated spectroscopic photoacoustic imaging for ablation‐induced necrotic lesion visualization.

Author

Gao, Shang, Ashikaga, Hiroshi, Suzuki, Masahito, Mansi, Tommaso, Kim, Young‐Ho, Ghesu, Florin‐Cristian, Kang, Jeeun, Boctor, Emad M., Halperin, Henry R., and Zhang, Haichong K.

Abstract

Radiofrequency (RF) ablation is a minimally invasive therapy for atrial fibrillation. Conventional RF procedures lack intraoperative monitoring of ablation‐induced necrosis, complicating assessment of completeness. While spectroscopic photoacoustic (sPA) imaging shows promise in distinguishing ablated tissue, multi‐spectral imaging is challenging in vivo due to low imaging quality caused by motion. Here, we introduce a cardiac‐gated sPA imaging (CG‐sPA) framework to enhance image quality using a motion‐gated averaging filter, relying on image similarity. Necrotic extent was calculated based on the ratio between spectral unmixed ablated tissue contrast and total tissue contrast, visualizing as a continuous color map to highlight necrotic area. The validation of the concept was conducted in both ex vivo and in vivo swine models. The ablation‐induced necrotic lesion was successfully detected throughout the cardiac cycle through CG‐sPA imaging. The results suggest the CG‐sPA imaging framework has great potential to be incorporated into clinical workflow to guide ablation procedures intraoperatively. [ABSTRACT FROM AUTHOR]

Published
2024
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7. Determinants of acute irreversible electroporation lesion characteristics after pulsed field ablation: the role of voltage, contact, and adipose interference

Author

Gasperetti, Alessio, primary, Assis, Fabrizio, additional, Tripathi, Hemantkumar, additional, Suzuki, Masahito, additional, Gonuguntla, Akhilesh, additional, Shah, Rushil, additional, Sampognaro, James, additional, Schiavone, Marco, additional, Karmarkar, Parag, additional, and Tandri, Harikrishna, additional

Published
2023
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9. A novel catheter ablation strategy for non‐paroxysmal atrial fibrillation combining cryoballoon, radiofrequency, and Marshall‐vein ethanol ablations

Author

Hayasaka, Kazuto, primary, Sasaki, Takeshi, additional, Shirai, Yasuhiro, additional, Shimosato, Hikaru, additional, Tahara, Tomohiro, additional, Segami, Shota, additional, Nagasawa, Ryo, additional, Akimoto, Ko, additional, Yabe, Kento, additional, Toya, Chisashi, additional, Watanabe, Keita, additional, Yamashita, Shu, additional, Suzuki, Masahito, additional, Sugiyama, Koji, additional, Yamauchi, Yasuteru, additional, Okishige, Kaoru, additional, Goya, Masahiko, additional, and Sasano, Tetsuo, additional

Published
2023
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10. The impact of B-type natriuretic peptide levels on the suppression of accompanying atrial fibrillation in Wolff-Parkinson-White syndrome patients after accessory pathway ablation

Author

Kawabata, Mihoko, Goya, Masahiko, Takagi, Takamitsu, Yamashita, Shu, Iwai, Shinsuke, Suzuki, Masahito, Takamiya, Tomomasa, Nakamura, Tomofumi, Hayashi, Tatsuya, Yagishita, Atsuhiko, Sasaki, Takeshi, Takahashi, Yoshihide, Ono, Yuhichi, Hachiya, Hitoshi, Yamauchi, Yasuteru, Otomo, Kenichiro, Nitta, Junichi, Okishige, Kaoru, Nishizaki, Mitsuhiro, Iesaka, Yoshito, Isobe, Mitsuaki, and Hirao, Kenzo

Published
2016
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11. Algorithm for Mobile Platform-Based Real-Time QRS Detection

Author

Neri, Luca, primary, Oberdier, Matt T., additional, Augello, Antonio, additional, Suzuki, Masahito, additional, Tumarkin, Ethan, additional, Jaipalli, Sujai, additional, Geminiani, Gian Angelo, additional, Halperin, Henry R., additional, and Borghi, Claudio, additional

Published
2023
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12. Implantable Defibrillator System Shock Function, Mortality, and Cause of Death After Magnetic Resonance Imaging

Author

Ra, Joshua, primary, Oberdier, Matt T., additional, Suzuki, Masahito, additional, Vaidya, Dhananjay, additional, Liu, Yisi, additional, Hansford, Rozann, additional, McVeigh, Diana, additional, Weltin, Valeria, additional, Tao, Susumu, additional, Thiemann, David R., additional, Nazarian, Saman, additional, and Halperin, Henry R., additional

Published
2023
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13. 腎梗塞を伴った特発性腎動脈解離に対してステント留置術を施行した1例

Author

YOSHIYAMA, Yasutoshi, HOSHINO, Orie, KOISO, Yasuhiro, NAKAJIMA, Yota, NAKAGAWA, Tassei, and SUZUKI, Masahito

Subjects
Spontaneous renal artery dissection, Stent, cardiovascular diseases, 494.9
Abstract

Spontaneous renal artery dissection (SRAD) is extremely rare and the management procedures have not been established. We report a case of endovascular stent placement for SRAD with renal infarction. A 53-year-old man visited a hospital with the complaint of lumbago. Contrast enhanced computed tomography images showed right renal artery dissection and renal infarction. He was transferred to our hospital for further treatment. We consulted our department of endovascular surgery. As 16 hours had passed from the onset, stent placement was performed on the next day as a wait and see procedure. He was discharged 11 days after the stenting. At 14 months after the procedure, he is free from lumbago and his serum creatine levels are within the normal range.

Published
2021

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Author

YOSHIYAMA, Yasutoshi, HOSHINO, Orie, KOISO, Yasuhiro, NAKAJIMA, Yota, NAKAGAWA, Tassei, SUZUKI, Masahito, YOSHIYAMA, Yasutoshi, HOSHINO, Orie, KOISO, Yasuhiro, NAKAJIMA, Yota, NAKAGAWA, Tassei, and SUZUKI, Masahito

Abstract

Spontaneous renal artery dissection (SRAD) is extremely rare and the management procedures have not been established. We report a case of endovascular stent placement for SRAD with renal infarction. A 53-year-old man visited a hospital with the complaint of lumbago. Contrast enhanced computed tomography images showed right renal artery dissection and renal infarction. He was transferred to our hospital for further treatment. We consulted our department of endovascular surgery. As 16 hours had passed from the onset, stent placement was performed on the next day as a wait and see procedure. He was discharged 11 days after the stenting. At 14 months after the procedure, he is free from lumbago and his serum creatine levels are within the normal range.

Published
2021

25. Oceanobacter-related bacteria are important for the degradation of petroleum aliphatic hydrocarbons in the tropical marine environment

Author

Teramoto, Maki, Suzuki, Masahito, Okazaki, Fumiyoshi, Hatmanti, Ariani, and Harayama, Shigeaki

Subjects
Biodegradation -- Methods, Biodegradation -- Research, Marine bacteria -- Genetic aspects, Marine bacteria -- Research, Biological sciences
Abstract

Petroleum-hydrocarbon-degrading bacteria were obtained after enrichment on crude oil (as a 'chocolate mousse') in a continuous supply of Indonesian seawater amended with nitrogen, phosphorus and iron nutrients. They were related to Alcanivorax and Marinobacter strains, which are ubiquitous petroleum-hydrocarbon-degrading bacteria in marine environments, and to Qceanobacter kriegii (96.4-96.5% similarities in almost full-length 16S rRNA gene sequences). The Oceanobacter-related bacteria showed high n-alkane-degrading activity, comparable to that of Alcanivorax borkumensis strain SK2. On the other hand, Alcanivorax strains exhibited high activity for branched-alkane degradation and thus could be key bacteria for branched-alkane biodegradation in tropical seas. Oceanobacter-related bacteria became most dominant in microcosms that simulated a crude oil spill event with Indonesian seawater. The dominance was observed in microcosms that were unamended or amended with fertilizer, suggesting that the Oceanobacter-related strains could become dominant in the natural tropical marine environment after an accidental oil spill, and would continue to dominate in the environment after biostimulation. These results suggest that Oceanobacter-related bacteria could be major degraders of petroleum n-alkanes spilt in the tropical sea. DOI 10.1099/mic.0.030411-0

Published
2009

48. Mechanisms of Diuresis for Acute Decompensated Heart Failure by Tolvaptan

Author

Nomoto, Hidetsugu, primary, Satoh, Yasuhiro, additional, Kamiyama, Mayu, additional, Yabe, Kento, additional, Masumura, Mayumi, additional, Sakakibara, Atsushi, additional, Yamashita, Shu, additional, Suzuki, Masahito, additional, Sugiyama, Tomoyo, additional, Oumi, Tetsuo, additional, Ohno, Masakazu, additional, Takahashi, Yoshihide, additional, and Isobe, Mitsuaki, additional

Published
2017
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