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Figure 5 Effect of Mental Stress and Exercise on Regional Myocardial Uptake

Changes in regional myocardial uptake or rubidium-82 and in electrocardiogram in relation to chest pain before and after mental arithmetic or exercise. Control scans show homogeneous regional cation uptake. In the patient above there are defects in uptake (arrows) by the anterior wall with mental arithmetic and exercise, and these changes are accompanied by ST-segment depression and angina. A = anterior wall; FW = left ventricular free wall; S = interventricular septum. Adapted and reprinted, with permission, from Deanfield et al. (9).