Determination of cardiac output by Doppler echocardiography by Halfdan Ihlen and others 2026-11-05
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Primary paper, British Heart Journal 51(1), pp. 54–60, January 1984, DOI 10.1136/hrt.51.1.54. The publisher first-page index verifies the full first byline Halfdan Ihlen: heart.bmj.com/content/heartjnl/51/1/54.full.pdf . Abstract: comparison with thermodilution at rest and during dobutamine infusion in ten patients, and with the Fick method at rest in eleven. The theory relates spatially averaged velocity and anatomical area to flow. Full-text entry: pmc.ncbi.nlm.nih.gov/articles/PMC482313/ . Direct readers returned 403/browser checks; the primary publisher indexed first page and abstract were readable. No uninspected result statistics are asserted.
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