Summary
A simple noninvasive radionuclide technique has been developed to measure the severity of valvular regurgitation. Right and left ventricular stroke volume indices (changes in counts between diastole and systole over the left and right ventricles) are obtained from 45° LAO gated cardiac blood pools scans. In 14 normal individuals, the left to right ventricular stroke index ratio was near unity (1.15 ±0.15 SD). In 26 patients with mitral and/or aortic regurgitation, it averaged 2.44 (range 1.36–5.30). Comparison between the stroke index ratio and qualitative angiographic estimates of regurgitation revealed good agreement (F=45.5,P<0.001). Our preliminary results indicate that gated cardiac blood pool scans permit noninvasive assessment of the severity of valvular regurgitation.
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Rigo, P., Alderson, P.O., Robertson, R.M., Becker, L.C. (1980). Measurement of Aortic and Mitral Regurgitation by Gated Cardiac Blood Pool Scans. In: Horst, W., Wagner, H.N., Buchanan, J.W. (eds) Frontiers in Nuclear Medicine. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-67575-1_21
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DOI: https://doi.org/10.1007/978-3-642-67575-1_21
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