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Physiologic assessment of coronary artery stenosis by coronary flow reserve measurements with transthoracic doppler echocardiography: comparison with exercise thallium-201 single-photon emission computed tomography

^a Department of Internal Medicine and Cardiology, Graduate School of Medicine, Osaka City University, Osaka, Japan

View larger version (115K): [in a new window]   Figure 1 Spectral Doppler signals at baseline (left) and during hyperemia (right) in a patient with abnormal myocardial perfusion in the left anterior descending coronary artery (LAD) territories (A) and in a patient with normal perfusion in the LAD territories (B).

View larger version (9K): [in a new window]   Figure 2 The correlation between coronary flow reserve (CFR) (peak and mean) and the results of Tl-201–SPECT was good. There was overall agreement in 30 (91%) of 33 patients.