Conventional mammographic image generation method with increased calcification sensitivity based on dual-energy

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

Abstract

The visualization of calcifications could be obscured in mammograms because of overlapping of tissue structures. Dual-energy digital mammography (DEDM) can generate tissue-subtracted image for improving the detectability of breast calcifications, but the mass information is missing. This paper proposes a conventional mammographic image generation method with increased calcification sensitivity based on DEDM. Firstly, a conventional mammographic image is generated with low-energy and high-energy images based on multi-scale decomposition and reconstruction. Secondly, the tissue-subtracted "calcification image" is generated using a nonlinear inverse mapping function with calcification pixels marked. Finally, the density values of the marked calcification pixels in the reconstructed mammographic image are increased for better visualization. Preliminary results show that the proposed DEDM method can generate both calcification and conventional mammogram-like images and the calcification sensitivity is increased. The CNR of calcifications of 50% glandular ratio has been increased from 2.75 to 9.32.

Original languageEnglish
Title of host publicationBreast Imaging - 12th International Workshop, IWDM 2014, Proceedings
PublisherSpringer Verlag
Pages460-467
Number of pages8
ISBN (Print)9783319078861
DOIs
StatePublished - 2014
Event12th International Workshop on Breast Imaging, IWDM 2014 - Gifu City, Japan
Duration: 29 Jun 20142 Jul 2014

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume8539 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference12th International Workshop on Breast Imaging, IWDM 2014
Country/TerritoryJapan
CityGifu City
Period29/06/142/07/14

Keywords

  • calcification sensitivity
  • digital mammography
  • dual-energy
  • multi-scale

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