Uniform Abdomen Phantom

Low-contrast spheres

This phantom is a semianthropomorphic phantom representing the abdomen including the liver, spleen and the spine. Organ contours do not change throughout the entire phantom.

The phantom has 64 spherical lesions in the liver with 8 and 12 mm diameter and lesion contrasts of 10, 20, 30 and 40 HU to the surrounding liver.

The phantom can be used in CT (including CBCT) to assess the detectability of spherical low-contrast lesions in a uniform liver background.

Diagnostic features 

64 spherical liver lesions in 7 sections.

• Lesion diameter: 8 mm and 12 mm
• Lesions contrasts: 10, 20, 30 and 40 HU at 120 kVp

• Section 1 contains 8 lesions
• Section 2 contains 8 lesions
• Section 3 contains 8 lesions
• Section 4 contains 12 lesions
• Section 5 contains 12 lesions
• Section 6 contains 8 lesions
• Section 7 contains 8 lesions