Prediction of graft patency by the analysis of transit-time flow meter waveform in coronary artery bypass grafting.

• Project/Area Number: 20591654
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Thoracic surgery
• Research Institution: Wakayama Medical University
• Principal Investigator: OKAMURA Yoshitaka 和歌山県立医科大学, 医学部, 教授 (80245076)
• Co-Investigator(Kenkyū-buntansha): KANEKO Masahiro 和歌山県立医科大学, 医学部, 学内助教 (40433346) ; MAEDA Masanobu 和歌山県立医科大学, 医学部, 教授 (80181593) ; WAKI Hidefumi 和歌山県立医科大学, 医学部, 講師 (50274957) ; HATADA Atsutoshi 和歌山県立医科大学, 医学部, 助教 (70508027) ; 本田 賢太朗 和歌山県立医科大学, 医学部, 助教 (60508018)
• Project Period (FY): 2008 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2011: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000); Fiscal Year 2010: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000); Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 冠動脈バイパス術 / グラフト波形 / 高速フーリエ変換 / グラフト不全 / トランジットタイム血流計 / 心臓血管外科学

Research Abstract

Intraoperative evaluation of graft property in coronary artery bypass grafting surgery(CABG) is important to predict the graft patency. We analyzed the waveform of transit time flowmeter in graft using animal CABG model. Fast Fourier transformation was applied to analyze waveform of the graft. Our results indicate that the high frequency area of the Fourier spectrum is important to predict graft patency.

Research Products

• [Journal Article] A comparison of the waveforms of transit time flowmetry and intraoperative fluorescence imaging for assessing coronary artery bypass graft patency (2011)
  • Author(s): Atsutoshi Hatada, Yoshitaka Okamura, Masahiro Kaneko, Takahiro Hisaoka, Shuji Yamamoto, Takeshi Hiramatsu, Yoshiharu Nishimura
  • Journal Title: Gen Thorac Cardiovasc Surg Volume: 59 Pages: 14-18
  • NAID: 10028174307
  • Peer Reviewed
• [Journal Article] Comparison of the waveforms of transit time flowmetry and intraoperative fluorescence imaging for assessing coronary artery bypass graft patency (2011)
  • Author(s): Hatada A, Okamura Y, et al
  • Journal Title: Gen Thorac Cardiovasc Surg Volume: 59 Pages: 14-18
  • NAID: 10028174307
  • Peer Reviewed
• [Journal Article] A comparison of the Waveforms of Transit-Time Flowmetry and Intraoperative Fluorescence Imaging for Assessing Coronary Artery Bypass Graft Patency. (2011)
  • Author(s): Atsutoshi Hatada, Yoshitaka Okamura, Masahiro Kaneko, Takahiro Hisaoka, Shuji Yamamoto, Takeshi Hiramatsu, Yoshiharu Nishimura.
  • Journal Title: Gen Thorac Cardiovasc Surg. 59 Pages: 14-18
  • NAID: 10028174307
  • Peer Reviewed
• [Journal Article] A comparison of the Waveforms of Transit-Time Flowmetry and Intraoperative Fluorescence Imaging for Assessing Coronary Artery Bypass Graft Patency. (2011)
  • Author(s): Atsutoshi Hatada, Yoshitaka Okamura, Masahiro Kaneko, Takahiro Hisaoka, Shuji Yamamoto, Takeshi Hiramatsu, Yoshiharu Nishimura.
  • Journal Title: Gen Thorac Cardiovasc Surg Volume: 59 Pages: 14-18
  • NAID: 10028174307
  • Peer Reviewed
• [Journal Article] A comparison of the Waveforms of Transit-Time Flowmetry and Intraoperative Fluorescence Imaging for Assessing Coronary Artery Bypass Graft Patency (2010)
  • Author(s): Atsutoshi Hatada
  • Journal Title: General Thoracic and Cardiovascular Surgery (in press)
  • NAID: 10028174307
  • Peer Reviewed
• [Presentation] 血流波形解析による左内胸動脈グラフト開存の予測 (2011)
  • Author(s): 畑田充俊, 岡村吉隆, 西村好晴, 打田俊司, 戸口幸治, 本田賢太朗, 栗山雄幸, 吉田稔
  • Organizer: 第64回日本胸部外科学会定期学術集会
  • Place of Presentation: 名古屋
  • Year and Date: 2011-10-12
• [Presentation] Flowmetry of saphenous vein grafts to right coronary artery is better than that of radial artery graft (2011)
  • Author(s): Hatada A, Okamura Y, Nishimura Y, Uchita S, Toguchi K, Honda K, Yoshida M, Yamamoto N, Azuma Y
  • Organizer: 第75回日本循環器学会総会
  • Place of Presentation: 横浜
• [Presentation] インドシアニングリーンを用いた術中グラフト造影によるグラフト開存の予測 (2010)
  • Author(s): 畑田充俊, 岡村吉隆, 西村好晴, 打田俊司, 小森茂, 戸口幸治, 本田賢太朗, 吉田稔, 山本暢子
  • Organizer: 第63回日本胸部外科学会定期学術集会
  • Place of Presentation: 大阪
• [Presentation] インドシアニングリーンを用いた術中グラフト造影によるグラフト開存の予測. (2010)
  • Author(s): 畑田充俊、岡村吉隆、西村好晴、打田俊司、小森茂、戸口幸治、本田賢太朗、吉田稔、山本暢子
  • Organizer: 第63回日本胸部外科学会定期学術集会
  • Place of Presentation: 大阪
• [Presentation] 冠動脈狭窄度とグラフト血流波形の関係 (2009)
  • Author(s): 畑田充俊
  • Organizer: 日本胸部外科学会
  • Place of Presentation: 横浜
  • Year and Date: 2009-11-13
• [Presentation] Relationship between coronary artery stenosis and a waveform of graft flow (2009)
  • Author(s): 畑田充俊
  • Organizer: International Union of Physiological Society
  • Place of Presentation: Kyoto
  • Year and Date: 2009-07-28
• [Presentation] Relationship between coronary artery stenosis and a waveform of graft flow (2009)
  • Author(s): T, Hatada A, Okamura Y, Honda K, Kousaka A, Waki H, Maeda M
  • Organizer: 36th International Congress of Physiological Sciences
  • Place of Presentation: Kyoto
• [Presentation] Yamamoto S Assessment of Graft Patency to Analyze the Waveform Using a Fast Fourier Transformation (2009)
  • Author(s): Hatada A, Okamura Y, Nishimura Y, Uchita S, Hisaoka T, Honda K, Kaneko M, Yuzaki M, Nakai T, Yoshida M
  • Organizer: The 73rd Annual Scientific Meeting of the Japanese circulation Society
  • Place of Presentation: Osaka
• [Presentation] インドシアニングリーンを用いた術中グラフト造影とグラフト波形の比較 (2009)
  • Author(s): 畑田充俊, 岡村吉隆, 西村好晴, 打田俊司, 久岡崇宏, 本田賢太朗, 金子政弘, 仲井健朗, 吉田稔
  • Organizer: 第39回日本心臓血管外科学会学術集会
  • Place of Presentation: 富山
• [Presentation] インドシアニングリーンを用いた術中グラフト造影による新たなグラフト開存指標の開発 (2009)
  • Author(s): 畑田充俊, 岡村吉隆, 西村好晴, 打田俊司, 久岡崇宏, 本田賢太朗, 金子政弘, 仲井健朗, 吉田稔, 山本暢子
  • Organizer: 第109回日本外科学会定期学術集会
  • Place of Presentation: 福岡
• [Presentation] 冠動脈狭窄度とグラフト血流波形の関係. (2009)
  • Author(s): 畑田充俊、岡村吉隆、西村好晴、打田俊司、戸口幸治、本田賢太朗、金子政弘、湯崎充、仲井健朗.
  • Organizer: 第62回日本胸部外科学会定期学術集会.
  • Place of Presentation: 横浜
• [Presentation] Relationship between coronary artery stenosis and a waveform of graft flow. (2009)
  • Author(s): Atsutoshi Hatada, Yoshitaka Okamura, Kentarou Honda, Akira Kousaka, Hidehumi Waki, Masanobu Maeda
  • Organizer: The 36th International congress of Physiology Science
  • Place of Presentation: Kyoto.
• [Presentation] Asessment of Graft Patency to Analyze the Waveform Usinga Fast Fourier transformation. (2009)
  • Author(s): Atsutoshi Hatada, Yoshitaka Okamura, Yoshiharu Nishimura, Shunji Uchida, Takahiro Hisaoka, Kentaroh Honda, Masahiro Kaneko, Mitsuru Yuzaki, Takeshi Nakai, Minoru Yoshida, Shuji Yamamoto.
  • Organizer: The 73^<rd> Annual Scientific Meeting of the Japanese circulation Society
  • Place of Presentation: 大阪
• [Presentation] インドシアニングリーンを用いた術中グラフト造影とグラフト血流波形の比較. (2009)
  • Author(s): 畑田充俊、岡村吉隆、西村好晴、打田俊司、久岡崇宏、本田賢太朗、金子政弘、仲井健朗、吉田稔
  • Organizer: 第39回日本心臓血管外科学会学術集会.
  • Place of Presentation: 富山
• [Presentation] インドシアニングリーンを用いた術中グラフト造影による新たなグラフト開存指標の開発. (2009)
  • Author(s): 畑田充俊、岡村吉隆、西村好晴、打田俊司、久岡崇宏、本田賢太朗、金子政弘、仲井健朗、吉田稔
  • Organizer: 第109回日本外科学会定期学術集会.
  • Place of Presentation: 福岡
• [Presentation] 冠動脈バイパス術におけるインスリン使用患者でのグラフト波形の変化 (2008)
  • Author(s): 畑田 充俊
  • Organizer: 第22回日本冠疾患学会学術集会
  • Place of Presentation: 東京
  • Year and Date: 2008-12-13
• [Presentation] 冠動脈バイパス術におけるインスリン使用患者でのグラフト波型の変化 (2008)
  • Author(s): 畑田充俊, 岡村吉隆, 西村好晴, 打田俊司, 久岡崇宏, 本田賢太朗, 仲井健朗, 吉田稔, 山中学, 山本暢子
  • Organizer: 第22回日本冠疾患学会学術集会
  • Place of Presentation: 東京
  • Year and Date: 2008-12-12
• [Presentation] 高速フーリエ変換を用いたグラフト回存の予測 (2008)
  • Author(s): 湯崎充, 山本修司, 谷奥匡, 畑田充俊, 西村好晴, 岡村吉隆
  • Organizer: 第56回日本胸部外科学会定期学術集会
  • Place of Presentation: 福岡
  • Year and Date: 2008-10-14
• [Presentation] 高速フーリエ変換を用いたグラフト開存の予測 (2008)
  • Author(s): 湯崎 充
  • Organizer: 第61回日本胸部外科学会学術集会
  • Place of Presentation: 福岡
  • Year and Date: 2008-10-14
• [Presentation] 高速フーリエ変換を用いた冠動脈バイパスグラフト血流波形の解析 (2008)
  • Author(s): 畑田 充俊
  • Organizer: 第101回近畿生理学談話会
  • Place of Presentation: 大阪
  • Year and Date: 2008-09-13
• [Presentation] Comparison of Graft Waveform in CABG between On-IABP and Off-IABP (2008)
  • Author(s): Atsutoshi Hatada
  • Organizer: 18^<th> World Congress-World Society of Cardio-Thoracic Surgeons
  • Place of Presentation: Kos, Greece
  • Year and Date: 2008-05-01
• [Presentation] 高速フーリエ変換を用いたグラフト開存の予測. (2008)
  • Author(s): 湯崎充、山本修司、谷奥匡、畑田充俊、西村好晴、岡村吉隆
  • Organizer: 第61回日本胸部外科学会定期学術集会
  • Place of Presentation: 福岡
• [Presentation] Comparison of Graft Waveform in CABG between On-IABP and Off-IABP (2008)
  • Author(s): Atsutoshi Hatada, Yoshitaka Okamura, Masahiro Kaneko, Mitsuru Yuzaki, Takahiro Hisaoka, Masahiro Iwahashi, Yoshiharu Nishimura, Takeshi Hiramatsu
  • Organizer: 18^<th> WSCTS World Congress.World society of Cardio-Thoracic Surgeons.
  • Place of Presentation: Kos, Greece