Construction of the integrated multicentre discharge summary database

• Project/Area Number: 24300098
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Library and information science/Humanistic social informatics
• Research Institution: Chiba University
• Principal Investigator: SUZUKI Takahiro 千葉大学, 医学部附属病院, 准教授 (40323422)
• Co-Investigator(Renkei-kenkyūsha): DOI Shunsuke 千葉大学, 医学部附属病院, 助教 (90639072) ; TAKASAKI Mitsuhiro 佐賀大学, 医学部附属病院, 准教授 (70236206) ; TSUMOTO Shusaku 島根大学, 医学部附属病院, 教授 (10251555) ; HATAKEYAMA Yutaka 高知大学, 教育研究部医療学系, 准教授 (00376956) ; HONDA Masayuki 長崎大学, 医歯(薬)学総合研究科, 教授 (10143306) ; MATSUMURA Yasushi 大阪大学, 医学部附属病院, 教授 (90252642) ; YOKOI Hideto 香川大学, 医学部附属病院, 教授 (50403788) ; TAKABAYASHI Katsuhiko 千葉大学, 医学部附属病院, 教授 (90188079)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000); Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000); Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2012: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
• Keywords: 退院時サマリー / テキストマイニング / 多施設共同研究 / 医療情報 / 退院サマリー / 電子カルテ / 病院情報システム / データベース / 多施設研究

Outline of Final Research Achievements

We performed the multi-year project to collect discharge summary from multiple hospitals and made the big text database to built a common document vector space, and developed various application. We extracted 243,907 discharge summaries from seven hospitals (Chiba University hospital, Nagasaki University hospital, Kagawa University hospital, Osaka University hospital, Kochi University hospital, Saga University hospital and St. Luke's International Hospital). There was a difference in term structure and number of terms between the hospitals, however the differences by disease were similar. We built the vector space using TF-IDF method. We performed cross-match analysis of DPC selection among seven hospitals. About 80% cases were correctly matched. The use of model data of other hospitals reduced selection rate to around 10%, however, integrated model data from all hospitals restore the selection rate.

Research Products

• [Journal Article] Construction of the integrated multicentre discharge summary database. (2013)
  • Author(s): Suzuki Takahiro
  • Journal Title: Stud Health Technol Inform. 2013;192:1064. Volume: 192 Pages: 1064-1064
  • Peer Reviewed
• [Journal Article] Construction of the integrated multicentre discharge summary database. (2013)
  • Author(s): Takahiro Suzuki, et al.
  • Journal Title: Stud Health Technol Inform (Accept)
  • Peer Reviewed
• [Presentation] Clinical application of the integrated multicenter discharge summary database (2015)
  • Author(s): Suzuki T, Doi S, Hatakeyama Y, Honda M, Matsumura Y, Shimada G, Takasaki M, Tsumoto S, Yokoi H, Takabayashi K.
  • Organizer: Medinfo2015
  • Place of Presentation: Frei Caneca Convention Center(Sao Paulo city, Brazil)
  • Year and Date: 2015-08-19 – 2015-08-23
• [Presentation] 多施設データを集約した退院サマリー検索システムの構築 (2014)
  • Author(s): 鈴木隆弘, 土井俊祐, 嶋田元, 高崎光浩, 津本周作, 畠山豊, 本多正幸, 松村泰志, 横井英人, 高林克日己
  • Organizer: 第34回医療情報学連合大会
  • Place of Presentation: 幕張メッセ（千葉市美浜区）
  • Year and Date: 2014-11-06 – 2014-11-08
• [Presentation] テキストマイニングによる退院サマリーの多施設間クロスマッチ比較 (2013)
  • Author(s): 鈴木隆弘
  • Organizer: 第33回医療情報学連合大会
  • Place of Presentation: 神戸ファッションマート, 神戸市.
• [Presentation] Construction of the integrated multicentre discharge summary database (2013)
  • Author(s): Suzuki Takahiro
  • Organizer: Medinfo
  • Place of Presentation: Bella Center, Copenhagen, Denmark.
• [Presentation] 多施設間の統合退院サマリーデータベースの構築 (2012)
  • Author(s): 鈴木隆弘
  • Organizer: 第32回医療情報学連合大会
  • Place of Presentation: 朱鷺メッセ(新潟県)
  • Year and Date: 2012-11-15
• [Remarks] 類似症例検索システム(DPC) PINACO-D
  • URL: http://180.43.191.30/csp/chiba/login.html