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Computer Assisted Surgery for Gastric Cancer

  • Keiichi Maruyama
  • Mitsuru Sasako
  • Taira Kinoshita
  • Takeshi Sano
  • Kunio Okajima

Abstract

Lymph node (LN) dissection is an effective procedure in surgical treatment of gastric cancer. For the rational LN dissection, it is essential to know the incidence of metastasis at each LN station and effectiveness of the dissection. In 1984 we created the computer program using our data of 3,785 primary gastric cancer patients. Pre-operatively seven data of an individual patient are input; sex, age, location, macroscopic type, size, depth of invasion, and histological type. The computer informs us the expected 5 year survival rate, incidence of metastasis at all regional LN stations, type of recurrence. Accuracy of the system was very high; false positive was only 14 cases (1.8%) in the prospective study of 774 patients. This system was also evaluated in Germany, and the sensitivity was 100%, specificity was 78%, and accuracy was 89% for N2 compartment.

Key Words

Gastric cancer Lymph node metastasis Computer assessment 

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Copyright information

© Springer-Verlag Tokyo 1993

Authors and Affiliations

  • Keiichi Maruyama
    • 1
  • Mitsuru Sasako
    • 1
  • Taira Kinoshita
    • 1
  • Takeshi Sano
    • 1
  • Kunio Okajima
    • 1
  1. 1.Gastric Surgery DivisionNational Cancer Center HospitalChuo-ku, Tokyo, 104Japan

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