Год выпуска: 2010 Автор: Alnazier Hamza,Mike. J Alport and William Rae Издательство: LAP Lambert Academic Publishing Страниц: 392 ISBN: 9783838322438
Описание
Mammography is one of the most effective methods for early breast cancer detection. Digital mammography has been established as a relatively new modality in radiology. The lack of a suitable Quality cotrol phantom, requires a new design of phantom for digital mammography imaging systems. A new phantom was designed with a new set of embedded objects composed of materials that are readily available, inexpensive, stable over time and easily prepared in the desired configuration. In addition, automatic quantitative scoring of the phantom was also desired. Phantom films were first digitised and then the template matching algorithm was used to detect and score the visibility of the phantom objects. In all cases, the image processing algorithms have yielded scores that have been comparable to, but more consistent than, scores obtained by the human used as controls. The quantitative and qualitative of the phantom images at 12 hospitals reveal that the phantom fulfils its ...
