Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Janine Krivokapich"'
Publikováno v:
Journal of the American College of Cardiology. 33(3):708-716
The study sought to determine the utility of dobutamine stress echocardiography (DSE) in predicting cardiac events in the year after testing.Increasingly, DSE has been applied to risk stratification of patients.Medical records of 1,183 consecutive pa
Publikováno v:
Journal of the American College of Cardiology. 28(3):565-572
Objectives. This study sought to measure myocardial blood flow at rest and during dobutamine infusion and to correlate flow with cardiac work and severity of coronary artery disease.Background. Dobutamine is used with cardiac imaging to induced possi
Autor:
Karl T. Sun, Deborah Dorsey, Egbert U. Nitzsche, Johannes Czernin, R. James Barnard, Michael E. Phelps, Heinrich R. Schelbert, Janine Krivokapich
Publikováno v:
Circulation. 92:197-204
Background Cardiovascular conditioning reduces resting myocardial oxygen demand by lowering systolic blood pressure and heart rate. Lower myocardial oxygen demand at rest would be expected to be associated with a decrease in resting myocardial blood
Autor:
Heinrich R. Schelbert, Denis B. Buxton, Janine Krivokapich, Tetsuo Hashimoto, Michael E. Phelps, Herbert Hansen
Publikováno v:
American Heart Journal. 127:1251-1262
To examine the effects of inotropic stimulation on regional myocardial blood flow (MBF), oxidative metabolism, and contractile function in stunned myocardium, nine closed-chest dogs were studied 2 hours postreperfusion after a 25 minute occlusion of
Autor:
Lawrence A. Yeatman, C.Todd Sherman, Richard C. Brunken, Heinrich R. Schelbert, C A Nienaber, Osman Ratib, Michael E. Phelps, Janine Krivokapich, John S. Child, Sanjiv S. Gambhir, Linda L. Demer
Publikováno v:
Journal of the American College of Cardiology. 18(4):966-978
Although revascularization of hypoperfused but metabolically active human myocardium improves segmental function, the temporal relations among restoration of blood flow, normalization of tissue metabolism and recovery of segmental function have not b
Autor:
Lynne Warner Stevenson, Jon A. Kobashigawa, Heinrich R. Schelbert, Janine Krivokapich, Sung-Cheng Huang
Publikováno v:
Journal of the American College of Cardiology. 18:512-517
The maximal exercise capacity of cardiac transplant recipients is reduced compared with that of normal subjects. To determine if this reduced exercise capacity is related to inadequate myocardial perfusion during exercise, myocardial perfusion was me
Publikováno v:
American Heart Journal. 122:202-211
Positron emission tomography has been employed in vivo to assess flow using N-13 (nitrogen-13) ammonia and glucose metabolism, with the glucose analog F-18 (fluorine-18) fluorodeoxyglucose. Flow metabolism mismatches in which glucose metabolism is in
Autor:
Michael E. Phelps, Sanjiv S. Gambhir, C A Nienaber, Sung-Cheng Huang, Osman Ratib, Heinrich R. Schelbert, Janine Krivokapich
Publikováno v:
Journal of the American College of Cardiology. 17(1):260-269
To derive a quantitative index of regional myocardial blood flow, the arterial input function of the flow tracer N-13 ammonia and the regional myocardial N-13 activity concentrations were noninvasively determined in 29 experiments in eight dogs. N-13
Publikováno v:
Journal of the American College of Cardiology. 16:1158-1167
This study was designed to test the usefulness of nitrogen-13 (N-13) glutamate imaging with positron emission tomography in defining myocardial ischemia in humans. Seventeen patients who had undergone coronary arteriography were studied with N-13 glu
Autor:
Gary D. Hutchins, Karen C. Rosenspire, Heinrich R. Schelbert, Janine Krivokapich, Markus Schwaiger, David E. Kuhl
Publikováno v:
Journal of the American College of Cardiology. 15(5):1032-1042
Evaluation of regional myocardial blood flow by conventional scintigraphic techniques is limited to the qualitative assessment of regional tracer distribution. Dynamic imaging with positron emission tomography allows the quantitative delineation of m