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Figure 4 Myocardial perfusion in 201Tl-scintigraphy of 17 patients at baseline and three and six months after percutaneous myocardial revascularization, respectively. Myocardial perfusion was quantitated by measurement of 201Tl uptake in the laser-treated regions compared with the non-lasered septum (septum = 100%). (A)Stress induced by injection of 0.54 mg/kg body weight of dipyridamole. Striped box = stress; solid box = rest. (B) Ischemia induced by standard bicycle ergometry. Striped box = exercise; solid box = rest.
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