JNM -- Büther et al. 48 (7): 1060 Figure IG4

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FIGURE 4. Attenuation map (top) and PET (bottom) line profiles through heart (Fig. 3E), with attenuation data from unenhanced CT scan (A), nonprocessed contrast-enhanced CT scan (B), contrast-enhanced CT scan with cylinder-threshold contrast agent correction (C), and contrast-enhanced CT scan with global-threshold contrast agent correction (D).