Figure 9.

Figure 9A: Left, Thallium-201 stress and reinjection (Reinj) images after treadmill exercise in the short-axis (SA) and vertical long-axis (VLA) SPECT tomograms (left). Thallium images demonstrate a severe reversible inferior defect (arrows), consistent with exercise stress-induced ischemia. Right, A similar defect is seen on the early BMIPP images in the same tomographic cuts (arrows), with BMIPP injected 22 hours after the stress-induced ischemia. The defect on the delayed BMIPP image is less prominent than on the early image. These image data suggest that BMIPP detects prolonged postischemic suppression of fatty acid metabolism for up to 22 hours after stress-induced ischemia. Reproduced with permission reference 95.

Figure 9B: Exercise and rest ^99mTc-sestamibi perfusion and ¹⁸F-FDG images of 71-y-old man (patient 7) with exertional angina, in short-axis and vertical and horizontal long-axis slices. Reversible perfusion abnormality involving anterior and septal walls (white arrows) is shown. Intense ¹⁸F-FDG uptake in anterior and septal walls on exercise images is demonstrated. ¹⁸F-FDG uptake persists on rest images in anterior and septal walls, and lateral wall also showed intense ¹⁸F-FDG uptake (yellow arrows). This patient had 90% stenosis of left anterior descending and 80% stenosis of circumflex and right coronary artery. Reproduced with permission reference 96.