Fluke Biomedical 18-220 - Manual (Page 5)

General Information
Introduction
1
1-1
Section 1
General Information
1.1 INTRODUCTION
The Mammographic Phantom, Accreditation Model, was designed to test the performance of a
mammographic system by a quantitative evaluation of the system’s ability to image small structures
similar to those found clinically. Objects within the phantom simulate calcifications, fibrous calcifications
in ducts, and tumor or masses. The Phantom is designed to determine if your mammographic system
can detect small structures that are important in the early detection of breast cancer. Test objects within
the phantom range in size from those that should be visible on any system to objects that will be difficult
to see even on the best mammographic systems.
The 4.4 cm thick Mammographic Phantom is made up of a 7 mm wax block insert containing 16 sets of
test objects, a 3.4 cm (approx. 1-3/8”) thick acrylic base, and a 3 mm (1/8”) thick cover. All of this
together approximates a 4.5 cm compressed breast of average glandular/adipose composition. Included
in the wax insert are aluminum oxide, (Al
2
O
3
) specks to simulate micro-calcifications. Six different size
nylon fibers simulate fibrous structures and five different size lens shaped masses simulate tumors.
Figure 1-1. Mammographic Phantom, Accreditation Model 18-220