The CIRS mammography research set includes tissue equivalent phantoms 4, 5 and 6 cm thick. Each phantom contains identical bded details (see map 011A). The glandular content of each phantom is 50%, 30%, and 20% respectively. Also included are phototimer compensation plates enabling a range of thickness from 0.5 cm to 7 cm with a glandular content of 30%, 50% and 70%.
One compensation plate contains bded details for buation of image quality. A heavy duty foam lined carrying case are included.
CIRS resin material mimics the photon attenuation coefficients of a range of breast tissues. Average elemental comb of the human breast being mimicked is based in the individual elemental comb of adipose and glandular tissue reported by Hammerstein.
Attenuation coefficients are calculated by using the "mixture rule" and the Photon Mass Attenuation and Energy Absorption Coefficient Table of J.H. Hubbell.
Enable buation of image quality under varying degrees of thickness and glandularity
Provides accurate reliable test for radiation dose
Ensures consistent production of diagnostically useful images
