Towards a phantom for multimodality performance evaluation of breast imaging: A 3D structured phantom with simulated lesions tested for 2D digital mammography

Kristina Tri Wigati, Lesley Cockmartin, Nicholas Marshall, Djarwani Soeharso Soejoko, Hilde Bosmans

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationBreast Imaging - 13th International Workshop, IWDM 2016, Proceedings
EditorsKristina Lang, Anders Tingberg, Pontus Timberg
PublisherSpringer Verlag
Pages243-253
Number of pages11
ISBN (Print)9783319415451
DOIs
Publication statusPublished - 1 Jan 2016
Event13th International Workshop on Breast Imaging, IWDM 2016 - Malmo, Sweden
Duration: 19 Jun 201622 Jun 2016

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume9699
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference13th International Workshop on Breast Imaging, IWDM 2016
Country/TerritorySweden
CityMalmo
Period19/06/1622/06/16

Keywords

  • 3D structured phantom
  • Image quality
  • Microcalcifications
  • Non-spiculated masses
  • Spiculated masses

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