1998
DOI: 10.1117/1.429875
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Myocardial Oxygenation in Dogs During Reactive Hyperemia

Abstract: The mechanisms of myocardial oxygenation during reactive hyperemia were studied in the beating heart using continuous near infrared (NIR) spectroscopy. In open chest dogs, NIR spectroscopy was used to monitor brief occlusions of the left anterior descending artery. These occlusions produced a precipitous drop in tissue oxygen stores (tHbO2+MbO2), tissue blood volume, and the oxidation level of mitochondrial cytochrome a,a3. Reperfusion produced a rapid increase in the NIR signals to supranormal levels, followe… Show more

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Cited by 5 publications
(1 citation statement)
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“…Although a small blood flow contribution may still exist (DERUMEAUX et al, 1998;PARSONS et al, 1998), for example from collateral blood vessels, the LDPM signal is expected to be almost entirely generated by tissue motion. Low-velocity intervals (TDIi,t), at the end of the occlusions, were always found late in systole.…”
Section: Discussionmentioning
confidence: 99%
“…Although a small blood flow contribution may still exist (DERUMEAUX et al, 1998;PARSONS et al, 1998), for example from collateral blood vessels, the LDPM signal is expected to be almost entirely generated by tissue motion. Low-velocity intervals (TDIi,t), at the end of the occlusions, were always found late in systole.…”
Section: Discussionmentioning
confidence: 99%