Quantitative assessment procedure using indocyanine green angiography during cardiovascular surgery

2015 Fiscal Year Final Research Report

• Project/Area Number: 26861110
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Cardiovascular surgery
• Research Institution: Kochi University
• Principal Investigator: Yamamoto Masaki 高知大学, 教育研究部医療学系臨床医学部門, 助教 (20437718)
• Co-Investigator(Renkei-kenkyūsha): Orihashi Kazumasa 高知大学, 教育研究部医療学系臨床医学部門, 教授 (70204295) ; Nishimori Hideaki 高知大学, 教育研究部医療学系臨床医学部門, 准教授 (70294840) ; Sato Takayuki 高知大学, 教育研究部医療学系基礎医学部門, 教授 (90205930)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: indocyanine green / ICG angiography / CABG / NIR angiography

Outline of Final Research Achievements

The indocyanine green angiography has been applied for cardiovascular surgery. We aimed to investigate the quantitative assessment of bypass graft during coronary artery surgery in this study. We showed the usability of “intensity measurement procedure” to evaluate the blood flow through the bypass graft. It was suggested that the decrease of ICG intensity of bypass graft reflected the anastomotic stenosis. And, ICG angiography revealed the decrease of blood perfusion in the intestine by abdominal aorta or iliac artery clamp although its decrease rate depends on patients. Therefore, it was suggested the utility of the qualitative evaluation procedure of the peripheral perfusion of intestine. The quantitative procedure of peripheral perfusion of intestine by ICG angiography needs further research by experimental and clinical study.

Free Research Field

cardiovascular surgery