J. Carpenter
University of Wisconsin-Madison
5 Papers
55 Citations
J. Carpenter is an academic researcher from University of Wisconsin-Madison. The author has contributed to research in topics: Radionuclide angiography & Ejection fraction. The author has an hindex of 4, co-authored 5 publications.
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Papers
Effect of exercise protocol on the left ventricular response to exercise.
Carl Foster,Duncan S. Dymond,James D. Anholm,Michael L. Pollock,Donald H. Schmidt,J. Carpenter +5 more
TL;DR: Exercise protocol has a significant influence on the left ventricular response during exercise radionuclide angiography, representing supermaximal stress, yield lower ejection fractions than Protocol 1 and may reduce the specificity of exercise radio-angiography.
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Effect of warm-up on left ventricular response to sudden strenuous exercise
TL;DR: The results are consistent with the hypothesis that the abnormal responses to SSE are attributable to subendocardial ischemia secondary to a delay in autoregulation of myocardial blood flow, but the decrease in ejection fraction during SSE even following warm-up suggests that the mechanism for the abnormal response is more complicated than previously hypothesized.
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Effect of warm-up on left ventricular response to sudden strenuous exercise
TL;DR: The results are consistent with the hypothesis that the abnormal responses to SSE are attributable to subendocardial ischemia secondary to a delay in autoregulation of myocardial blood flow, but the decrease in ejection fraction during SSE even following warm-up suggests that the mechanism for the abnormal response is more complicated than previously hypothesized.
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First-pass radionuclide angiography via pulmonary arterial catheters. A critical analysis of background components.
TL;DR: There is a substantial and measurable background component, due mainly to Compton scatter, even when activity from the right heart and lungs is eliminated, even after first-pass radionuclide angiography is eliminated.
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