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Research on the cost-effect relationship of imaging diagnostic modalities by using new medico-economic techniques

Research Project

Project/Area Number 10670851
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Radiation science
Research InstitutionKobe University (1999)
Shimane Medical University (1998)

Principal Investigator

SUGIMURA Kazuo  Kobe University, School of Medicine, Radiology, Professor, 医学部, 教授 (00136384)

Co-Investigator(Kenkyū-buntansha) YAMASAKI Katsuhito  Kobe University, Hospital, Department of Radiology, Lecturer., 医学部・附属病院, 講師 (50210381)
OKIZUKA Hiromi  National Defense Medical College, Department of Radiology, Lecturer., 医学部, 講師 (00273938)
UCHIDA Nobue  Shimane Medical University, Department of Radiology, Assistant Professor., 医学部, 助手 (80304260)
石田 淳  島根医科大学, 医学部, 助手 (00212887)
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1999: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1998: ¥1,200,000 (Direct Cost: ¥1,200,000)
KeywordsMedical economy / cost-effect relation / ovarian tumor / ionic contrast medium / MRI / 医療経済学 / 子宮頚癌 / 卵巣癌
Research Abstract

Remarkable developments of MRI and CT techniques have led to improvements in the diagnostic accuracy and contributed greatly to the welfare of patients. However, these new diagnostic modalities are expensive and have been partly responsible for the increase in the medical expenditure. The benefit obtained by the use of these new imaging diagnostic modalities and the will of the patients examined by these modalities are not reflected in the debate concerning the medical expenditure. In our previous study conducted on a Grant-in-Aid, we clarified that MRI has an excellent cost-effect relation in gynecological disorders. in the present study, evaluation was made by generalizing the disease and analytical method. We examined the accuracy of the diagnoses of ovarian cancer and cancer of the uterine body with and without MRI, CT, and contrast enhancement, calculated the total medical cost including the cost for examinations, and analyzed the cost-effect relations of the imaging modalities in … More each disorder. Also, an imaginary market was postulated, and how much additional value there is to an expensive but safe and accurate examination or examination drug was estimated by asking the subjects about their willingness to pay for the benefit it provides.
In ovarian cancer and cancer of the uterine body, the addition of MRI and the addition of a contrast enhancement were shown to improve the diagnostic accuracy and reduce the total medical expenditure. In cancer of the uterine cervix, on the other hand, the addition of MRI was suggested to reduce the total medical expenditure, but the addition of contrast enhancement increased it. Next, a safe but expensive non-ionic contrast medium and an ionic contrast medium, which is likely to cause adverse effects but is cheap, were compared by the imaginary market method. As a result, the present difference in the drug price was found to be within the range that patients are willing to tolerate as a cost for additional values.
We are planning to continue our research on the cost-effect relationship of imaging diagnostic modalities by using new medico-economic techniques including the evaluation of the minimum amount of money that the patients are willing to accept when they give up a given service (willingness-to-accept method) as well as the willingness-to-pay method. Less

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] 杉村和朗: "撮像法の変遷は子宮疾患診断に影響を及ぼすか?"画像診断. 19. 436-437 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 杉村和朗: "定額包括払い方法について"月刊新医療. 27. 98-99 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 杉村和朗: "非イオン性造影剤による副作用発現リスク削減効果の評価-仮想市場法により測定した自発的支払意志額による分析-"日本医学放射線学会雑誌. 60. 33-41 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kazuo Sugimura: "Changing of Imaging Program Technique to Influence of Diagnosis of Uterine Disease"Gazou Shindan. 19(4). 436-437

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kazuo Sugimura: "Diagnosis Related Group by Prospective Payment System"Shin Iryo. 27. 98-99 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kazuo Sugimura: "Assessment of Non-ionic Contrast Agents in Reducing the Risk of Side Effects : Analysis on the basis of voluntary willingness-to-pay measured by the contingent valuation method"Nippon Acta Radiologica. 60(1). 33-41 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 杉村和朗: "撮像法の変遷は子宮疾患診断に影響を及ぼすか?"画像診断. 19. 436-437 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 杉村和朗: "定額包括払い方式について"月刊新医療. 27. 98-99 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 杉村和朗: "非イオン性造影剤による副作用発現リスク削減効果の評価-仮想市場法により測定した自発的支払意志額による分析-"日本医学放射線学会雑誌. 60. 33-41 (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-23  

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