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The aims of this study were: (1) to test whether first-pass radio-nuclide angiocardiography (FPRNA) adds userul information to perfusion scintigraphy; and (2) to assess the relative accuracy of perfusion and functional imaging in combination with dipyndam ole for the evaluation of CAD. Methods: Thirty patients with angiographically proven CAD (17 with prior infaction) were studied on separate days at rest and with dipyridamole infusion (0.7rog/kg over 4 min). Tomographic images were evaluated using an uptake score. Dipyridamole FPRNA was considered positive in case of stress-induced wall motion abnormality or ejection fracticn decrease. Results: The CAD detection rate of perfusion imaging was 100％, while that of FPRNA was 70％ using wall marion criteria, 63％ using ejection fraction response and 77％ condidering any abnormality. 96％ specificity and 82％ accuracy. FPRNA results were 50％, 100％ and 80％ respectively. Perfusion imaging was significantly
The aims of this study were: (1) to test whether first-pass radio-nuclide angiocardiography (FPRNA) adds userul information to perfusion scintigraphy; and (2) to assess the relative accuracy of perfusion and functional imaging in combination with dipyndam ole for the evaluation of CAD. Methods: Thirty patients with angiographically proven CAD (17 with prior infaction) were studied on separate days at rest and with dipyridamole infusion (0.7 gr / kg over 4 min.) Tomographic images were evaluated using an uptake score. Results: The CAD detection rate of perfusion imaging was 100% while that of FPRNA was 70% using wall marion criteria, 63% using fraction fraction response and 77% condidering any abnormality. 96% specificity and 82% accuracy. FPRNA results were 50%, 100% and 80% respectively. Perfusion imaging was significantly