Abstract
The performance of contact spot imaging on a scanning photon-counting system was evaluated and compared to conventional geometric magnification imaging for the assessment of screen-detected lesions. Three digital mammography systems were compared in terms of image quality and dose; Philips MDM, Hologic Selenia, GE Essential. Assessment imaging is performed on the scanning system in contact mode by reducing the scan width in combination with increased radiation exposure. Imaging optimisation was performed prior to comparative evaluation as preliminary studies established that the current performance of conventional magnification imaging was poorly optimised. Each system was investigated in terms of its ability to image simulated masses and mircrocalcifications using breast-tissue equivalent phantoms. Contrast-to-Noise Ratio and Average Glandular Dose were measured according to the EUREF guidelines and a Performance Index was formulated to facilitate comparison of the three systems. The scanning system performed at least comparably to conventional geometric magnification and offers workflow advantages.
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© 2012 Springer-Verlag Berlin Heidelberg
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Egan, G., Keavey, E., Phelan, N. (2012). Comparison of Contact Spot Imaging on a Scanning Mammography System to Conventional Geometric Magnification Imaging. In: Maidment, A.D.A., Bakic, P.R., Gavenonis, S. (eds) Breast Imaging. IWDM 2012. Lecture Notes in Computer Science, vol 7361. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31271-7_22
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DOI: https://doi.org/10.1007/978-3-642-31271-7_22
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