| Japanese |
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| Title | 制御差温式血流計による連続的な心筋組織血流量測定法 |
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| Subtitle | |
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| Authors | 飯島毅彦, 高山治子, 望月亮, 伊藤弘通, 久保田康耶 |
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| Organization | 東京医科歯科大学歯学部歯科麻酔学教室 |
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| Journal | 循環制御 |
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| Volume | 10 |
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| Number | 1 |
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| Page | 91-94 |
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| Year/Month | 1989/ |
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| Article | 原著 |
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| Publisher | 日本循環制御医学会 |
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| Abstract | 制御差置式組織血流計を心筋組織血流量の連続的測定に応用した. 本血流計は連続的な測定が可能であるが, 絶対値が測定できないため水素クリアランス式血流計にて較正を行った. 制御差温式組織血流計の測定値の信頼性を検討するため, 同時に測定した水素クリアランス式血流計の測定値と比較した. 心筋内層外層血流量測定用の測定端子をそれぞれ用意し, 内外層の血流量を別々に測定した. その結果, 心筋外層で相関係数γ＝0.96, 心筋内層で相関係数γ＝0.93とよい相関を示した. 心筋は常に拍動する臓器であるが, 測定値は安定し, 血流量の変動にも対応できた. 本血流量測定法は急激な心筋血流量の変動を捉えることができ, 連続的に絶対量で心筋組織血流量を測定できると考えられた. |
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| Practice | 基礎医学・関連科学 |
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| Keywords | |
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| English |
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| Title | Continuous Myocardial Blood Flow Measurement with Feedback−Thermocouple Flowmetry |
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| Subtitle | |
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| Authors | Takehiko Iijima, Haruko Takayama, Makoto Mochizuki, Hiromichi Ito, Yasuya Kubota |
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| Authors(kana) | |
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| Organization | |
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| Journal | Circulation Control |
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| Volume | 10 |
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| Number | 1 |
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| Page | 91-94 |
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| Year/Month | 1989/ |
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| Article | Original article |
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| Publisher | Japan Society of Circulation Control |
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| Abstract | The purpose of this study is to evaluate myocardial blood flow measurement with newly developed Feedback−Thermocouple Flowmetry. In anesthetized dogs, myocardial tissue blood flow was measured in epicardium and endocardium separately with Feedback−Thermocouple flowmetry. This flowmetry has a bipolar electrode, in which a heater pole and a reference pole are included. Both poles are connected with cooper−constantan. Temperature difference between two poles is maintained by electric heater. Blood flow is calculated from heater current. There are two types of probe. One is a plate type for epicardium. The other one is a needle type for endocardium. These probes can be attached to myocardium with silk strings. This flowmetry needs calibration by hydrogen clearance method. After calibration, blood flow was measured simultaneously and repeatedly by hydrogen clearance method to evaluate the values obtained from this flowmetry. |
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| Practice | Basic medicine |
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| Keywords | Myocardial blood flow, Flowmetry, Thermocouple |
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