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Proceedings Paper

Network-based reading system for lung cancer screening CT
Author(s): Yuichi Fujino; Kaori Fujimura; Shin-ichiro Nomura; Harumi Kawashima; Megumu Tsuchikawa; Toru Matsumoto; Kei-ichi Nagao; Takahiro Uruma; Shinji Yamamoto; Hotaka Takizawa; Chikazumi Kuroda; Tomio Nakayama
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Paper Abstract

This research aims to support chest computed tomography (CT) medical checkups to decrease the death rate by lung cancer. We have developed a remote cooperative reading system for lung cancer screening over the Internet, a secure transmission function, and a cooperative reading environment. It is called the Network-based Reading System. A telemedicine system involves many issues, such as network costs and data security if we use it over the Internet, which is an open network. In Japan, broadband access is widespread and its cost is the lowest in the world. We developed our system considering human machine interface and security. It consists of data entry terminals, a database server, a computer aided diagnosis (CAD) system, and some reading terminals. It uses a secure Digital Imaging and Communication in Medicine (DICOM) encrypting method and Public Key Infrastructure (PKI) based secure DICOM image data distribution. We carried out an experimental trial over the Japan Gigabit Network (JGN), which is the testbed for the Japanese next-generation network, and conducted verification experiments of secure screening image distribution, some kinds of data addition, and remote cooperative reading. We found that network bandwidth of about 1.5 Mbps enabled distribution of screening images and cooperative reading and that the encryption and image distribution methods we proposed were applicable to the encryption and distribution of general DICOM images via the Internet.

Paper Details

Date Published: 16 March 2006
PDF: 12 pages
Proc. SPIE 6145, Medical Imaging 2006: PACS and Imaging Informatics, 614505 (16 March 2006); doi: 10.1117/12.653019
Show Author Affiliations
Yuichi Fujino, NTT Labs. (Japan)
Kaori Fujimura, NTT Labs. (Japan)
Shin-ichiro Nomura, Nippon Telegraph and Telephone West (Japan)
Harumi Kawashima, NTT Labs. (Japan)
Megumu Tsuchikawa, Advanced Telecommunications Research Institute International (Japan)
Toru Matsumoto, National Institute of Radiological Sciences (Japan)
Kei-ichi Nagao, Chiba Univ. (Japan)
Takahiro Uruma, Chiba Univ. (Japan)
Shinji Yamamoto, Toyohashi Univ. of Technology (Japan)
Hotaka Takizawa, Toyohashi Univ. of Technology (Japan)
Chikazumi Kuroda, Osaka Medical Ctr. for Cancer and Cardiovascular Diseases (Japan)
Tomio Nakayama, Osaka Medical Ctr. for Cancer and Cardiovascular Diseases (Japan)


Published in SPIE Proceedings Vol. 6145:
Medical Imaging 2006: PACS and Imaging Informatics
Steven C. Horii; Osman M. Ratib, Editor(s)

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