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FIGURE 14. Phantoms adaptable to evaluation of accuracy of multimodality image registration. (A) Uniform phantom with 2 channels for line sources. (Courtesy of Dr. Sadek Nehmeh, Memorial Sloan-Kettering Cancer Center, New York, NY.) (B) Phantom (NEMA IEC Body Phantom; Data Spectrum Corp.) with multiple fillable spheres and cylindric insert that can be filled with polystyrene to provide minimally attenuating material, simulating lung in otherwise uniform water-filled volume.
