TY - GEN
T1 - Towards a phantom for multimodality performance evaluation of breast imaging
T2 - 13th International Workshop on Breast Imaging, IWDM 2016
AU - Wigati, Kristina Tri
AU - Cockmartin, Lesley
AU - Marshall, Nicholas
AU - Soejoko, Djarwani Soeharso
AU - Bosmans, Hilde
N1 - Publisher Copyright:
© Springer International Publishing Switzerland 2016.
PY - 2016
Y1 - 2016
N2 - The aim of this work is to test whether a 3D structured phantom with simulated lesions can be used for performance evaluation of 2D digital mammography, as a step towards a multimodality phantom. A phantom, developed for breast tomosynthesis was therefore applied on 23 digital mammography systems. Ten images were acquired at the clinically used dose and for 11 systems also at half and double dose. The images were read in a four-alternative forced choice (4-AFC) paradigm by 5 readers. CDMAM phantom acquisitions were also performed. It was possible to calculate diameter thresholds of the simulated masses and microcalcifications that guarantee 62.5% correct response. The results showed the expected sensitivity with mean glandular dose: detectability of microcalcifications improved with dose, whereas the detectability of masses was not affected. Systems of the same manufacturer and operated at similar doses had very similar detectability scores. Percentage correctly detected microcalcifications with average diameter 119 μm correlated with CDMAM based gold thickness thresholds. Present phantom, developed and tested for tomosynthesis, is also a good candidate for 2D mammography, suggesting its use for (future) benchmarking of at least two types of imaging systems.
AB - The aim of this work is to test whether a 3D structured phantom with simulated lesions can be used for performance evaluation of 2D digital mammography, as a step towards a multimodality phantom. A phantom, developed for breast tomosynthesis was therefore applied on 23 digital mammography systems. Ten images were acquired at the clinically used dose and for 11 systems also at half and double dose. The images were read in a four-alternative forced choice (4-AFC) paradigm by 5 readers. CDMAM phantom acquisitions were also performed. It was possible to calculate diameter thresholds of the simulated masses and microcalcifications that guarantee 62.5% correct response. The results showed the expected sensitivity with mean glandular dose: detectability of microcalcifications improved with dose, whereas the detectability of masses was not affected. Systems of the same manufacturer and operated at similar doses had very similar detectability scores. Percentage correctly detected microcalcifications with average diameter 119 μm correlated with CDMAM based gold thickness thresholds. Present phantom, developed and tested for tomosynthesis, is also a good candidate for 2D mammography, suggesting its use for (future) benchmarking of at least two types of imaging systems.
KW - 3D structured phantom
KW - Image quality
KW - Microcalcifications
KW - Non-spiculated masses
KW - Spiculated masses
UR - http://www.scopus.com/inward/record.url?scp=84977483638&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-41546-8_32
DO - 10.1007/978-3-319-41546-8_32
M3 - Conference contribution
AN - SCOPUS:84977483638
SN - 9783319415451
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 243
EP - 253
BT - Breast Imaging - 13th International Workshop, IWDM 2016, Proceedings
A2 - Lang, Kristina
A2 - Tingberg, Anders
A2 - Timberg, Pontus
PB - Springer Verlag
Y2 - 19 June 2016 through 22 June 2016
ER -