Basic study on the development of a high-resolution breast CT

Atsushi Teramoto, Tomoyuki Ohno, Fumio Hashimoto, Chika Murata, Keiko Takahashi, Ruriha Yoshikawa, Shoichi Suzuki, Hiroshi Fujita

研究成果: Conference contribution

抄録

X-ray breast computed tomography (breast CT) was developed by some research groups to overcome the limitations of mammography. Breast CT is expected to be an effective diagnostic tool because it can generate three-dimensional images of a breast. However, the spatial resolution of the existing system is not satisfactory for identifying microcalcifications within the breast. The purpose of this study was to develop a prototype of high-resolution breast CT system, and to evaluate the imaging properties of the developed system. Our experimental system consists of a microfocus X-ray tube and a flat panel detector with a C-arm frame, a bed, and their controllers. Images were reconstructed by using cone-beam X-ray projections and the Feldkamp-Davis-Kress algorithm. We used phantoms to experimentally evaluate three imaging properties and exposure dose. Consequently, the modulation transfer function value was 0.1 at the frequency of 6.0 LP/mm, which is higher than that of clinical CT and breast CT. Breast phantom microcalcifications were observed clearly. Furthermore, entrance surface dose in the experimental system was similar to that of mammography. These results indicate that our experimental system overcomes the limitations of both the mammogram and existing breast CT systems.

本文言語English
ホスト出版物のタイトルBreast Imaging - 12th International Workshop, IWDM 2014, Proceedings
出版社Springer Verlag
ページ494-500
ページ数7
ISBN(印刷版)9783319078861
DOI
出版ステータスPublished - 2014
イベント12th International Workshop on Breast Imaging, IWDM 2014 - Gifu City, Japan
継続期間: 29-06-201402-07-2014

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
8539 LNCS
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

Other

Other12th International Workshop on Breast Imaging, IWDM 2014
CountryJapan
CityGifu City
Period29-06-1402-07-14

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

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