Abstract
We compared M-mode echocardiographic and gated equilibrium radionuclide angiography assessement of the left ventricular (LV) dimensions at rest and during isometric exercise in 18 patients with chronic aortic valve incompetence. The two methods showed a satisfactory correlation when comparing LV size at rest and during exercise (LV end-diastolic dimension in echocardiography vs LV end-diastolic volume in radionuclide angiography, r=0.80, P0.01 at rest and r=0.81, P0.01 during exercise; LV end-systolic dimension in echocardiography vs LV end-systolic volume in radionuclide angiography, r=0.81, P0.01 at rest and r=0.75; P0.01 during exercise), but fractional shortening in echocardiography and ejection fraction in radionuclide angiography did not correlate (r=0.27, not significant (NS) at rest and r=0.34, NS during exercise). Thus echocardiography and radionuclide angiography describe LV dimensions at rest and during handgrip exercise in a similar fashion, documenting the concordance of these noninvasive methods to describe LV size in aortic incompetence at rest and during exercise.
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Groundstroem, K., Huikuri, H., Korhonen, U. et al. Left ventricular dimensions during isometric exercise in aortic valve incompetence assessed by M-mode echocardiography and gated equilibrium radionuclide angiography. Eur J Nucl Med 15, 204–206 (1989). https://doi.org/10.1007/BF00253796
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DOI: https://doi.org/10.1007/BF00253796