Figure 2From: Effects of attenuation map accuracy on attenuation-corrected micro-SPECT images NEMA image quality phantom, microcentrifuge tube and rat body showing99m Tc sources. (a) Drawing of NEMA image quality phantom, (b) 0.5-ml microcentrifuge tube and its tip for making sources (sealed with Parafilm (Pechiney Plastic Packaging Company, Chicago, IL, USA) afterwards) used in the rat study and (c) rat with numbered 99mTc sources with known activity.Back to article page