Presentation 1999/7/15
Spatial comparison of micromyocardial metabolic activity and microvascular blood flow distribution by NADH fluorescent imaging and molecular flow tracer imaging method
Tatsuya Kajita, Yasuo Ogasawara, Takeshi Matsumoto, Hiroyuki Tachibana, Hiroshi Nakamoto, Seiichi Mochizuki, Fumiyuki Shigetou, Fumihiko Kajiya,
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Abstract(in English) Our aims were to visualize myocardial NADH fluorescences image reflecting the mitochondrial metabolism and to compare the obtained images with the corresponding myocardial blood flow distribution in isolated, perfused rat hearts (Langendorff perfusion mode). We developed a fluorescence CCD system, consisting of an optical lens system with a barrier filter for NADH fluorescence, an ultraviolet light (370 nm) source, and a CCD video camera. Microvascular blood flow distribution was imaged by quantitative autoradiography combined with ^3H-labeled desmethylimipramine (^3H-DMI) deposition technique. Myocardial metabolic activity showed spatial heterogeneity, the size of which is nearly identical to the minimum circulatory units (300-500μm) and is closely related with blood flow distribution in the myocardial microcirculation during hypoxic state.
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Keyword(in English) isolated rat hearts / CCD / mitochondrial NADH fluorescence / molecular flow tracer / hypoxia
Paper # MBE99-52
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Committee MBE
Conference Date 1999/7/15(1days)
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Registration To ME and Bio Cybernetics (MBE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Spatial comparison of micromyocardial metabolic activity and microvascular blood flow distribution by NADH fluorescent imaging and molecular flow tracer imaging method
Sub Title (in English)
Keyword(1) isolated rat hearts
Keyword(2) CCD
Keyword(3) mitochondrial NADH fluorescence
Keyword(4) molecular flow tracer
Keyword(5) hypoxia
1st Author's Name Tatsuya Kajita
1st Author's Affiliation Department of Medical Engineering and Systems Cardiology, Kawasaki Medical School()
2nd Author's Name Yasuo Ogasawara
2nd Author's Affiliation Department of Medical Engineering and Systems Cardiology, Kawasaki Medical School
3rd Author's Name Takeshi Matsumoto
3rd Author's Affiliation Department of Medical Engineering and Systems Cardiology, Kawasaki Medical School
4th Author's Name Hiroyuki Tachibana
4th Author's Affiliation Department of Medical Engineering and Systems Cardiology, Kawasaki Medical School
5th Author's Name Hiroshi Nakamoto
5th Author's Affiliation Department of Medical Engineering and Systems Cardiology, Kawasaki Medical School
6th Author's Name Seiichi Mochizuki
6th Author's Affiliation Department of Medical Engineering and Systems Cardiology, Kawasaki Medical School
7th Author's Name Fumiyuki Shigetou
7th Author's Affiliation Department of Medical Engineering and Systems Cardiology, Kawasaki Medical School
8th Author's Name Fumihiko Kajiya
8th Author's Affiliation Department of Medical Engineering and Systems Cardiology, Kawasaki Medical School
Date 1999/7/15
Paper # MBE99-52
Volume (vol) vol.99
Number (no) 177
Page pp.pp.-
#Pages 8
Date of Issue