FIGURE 2. Attenuation images of NEMA phantom containing 2 cylindric acrylic inserts with oral CT contrast agent in clinical concentrations. Row A shows orthogonal CT sections (140 kV, 160 mA); row B shows matched PET transmission images acquired with ⁶⁸Ge rods in 30 min. Slight attenuation increase originating from insert walls is notable in transmission images. 1 = Micropaque Scanner; 2 = Gastrografin; 3 = water.

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