Tomophan® Image Quality
If you have not worked extensively with digital breast tomosynthesis (DBT) imaging, you may not be fully aware how different it is from conventional mammography and CT. The Tomophan® phantom has been designed to provide a complete characterization of this unique imaging system through objective measurements of key performance criteria.
The basic phantom is made from 3 key components: the 28mm test object, the 14mm spacer and the chest wall. For routine testing, the test object and spacer are stacked providing a total thickness of 42mm with the primary test plane in the center. By changing the position of the 14mm uniform spacer and/or flipping the test object, the primary test plane will be moved higher or lower in the imaging field.
To simulate a smaller breast the 28mm test object can be used alone. An optional 28mm spacer can be used with the test object to simulate a 56mm breast.
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