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Fig. 1 | EJNMMI Physics

Fig. 1

From: Comparison of image quality and spatial resolution between 18F, 68Ga, and 64Cu phantom measurements using a digital Biograph Vision PET/CT

Fig. 1

Jaszczak phantom (left) and NEMA PET body phantom (right). The Jaszczak phantom was used for qualitative evaluation of spatial resolution and image quality. It features cold rods (4.8 mm, 6.4 mm, 7.9 mm, 9.5 mm, 11.1 mm, and 12.7 mm in diameter) and spheres (9.5 mm, 12.7 mm, 15.9 mm, 19.1 mm, 25.4 mm, and 31.8 mm in diameter) surrounded by an activity-filled background compartment. The NEMA PET body phantom (right) was used for semiquantitative assessment of image quality. It features spheres of different sizes (10 mm, 13 mm, 17 mm, 22 mm, 28 mm, and 37 mm in diameter), which can be filled with radioactivity allowing hot spot imaging. The spheres are surrounded by a background compartment, which can also be filled with radioactivity. The cylindrical lung insert is positioned in the center of the phantom. It simulates patient lung tissue and features a density similar to lung tissue

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