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Relationship between vesico-ureteral reflux and trigonal configulation (by using computer assisted three dimensional mapping device)

Research Project

Project/Area Number 04454405
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Urology
Research InstitutionUniv. of the Ryukyus.

Principal Investigator

HATANO Tadashi  University of the Ryukyus Associate professor, 医学部, 助教授 (10101924)

Co-Investigator(Kenkyū-buntansha) KOYAMA Yuzo  University of the Ryukyus Assistant porfessor, 医学部, 講師 (80129436)
HAYAKAWA Masamichi  University of the Ryukyus Associate professor, 医学部, 助教授 (00095639)
OSAWA Akira  University of the Ryukyus Professor, 医学部, 教授 (70045251)
川村 猛  東京都立清瀬小児病院, 医長
Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥7,500,000 (Direct Cost: ¥7,500,000)
Fiscal Year 1993: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1992: ¥6,800,000 (Direct Cost: ¥6,800,000)
Keywordscomputer / endoscopy / three dimension / measurement / cystoscopy / vesico-ureteral reflux / trigonum / コンピュータ / 膀胱三角部 / 三次元 / 計測
Research Abstract

Relationship between vesico-ureteral reflux and trigonal configuration was studied by using three dimensional mapping device that was developed and patented by me. (Japan. Pat. 4-95002, USA Pat. 5228429 EPC pat 92100009.7) Methods :
Three dimensional mapping device and software was developed for this purpose. This device consists of multi-linked plural arms and angle sensors. Software was developed by using programming language "C" to calculate the three-dimensional co-ordinate of the trigon.
Angle data from the sensors were transferred to the computer and trigonal configuration was displayd by the software.
Results :
The ureteral orifices were not fixed but moving extensively with filling of the bladder. Therefore, trigonum were stretched and transformed with filling of the bladder. We compared the stretching rates between VUR and non-VUR cases. The result shows that treigonum stretched only longitudinally in non-VUR case however in VUR case stretched equally between longitudianl and lateral direction. This fact suggests that muscular development between bilateral ureteral orifices plays an important role to prevent VUR.So stretching direction deferent between VUR and non-VUR groups appears to have a remarkable importance in VUR diagnosis.

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 秦野直 他: "内視鏡用三次元計測装置(膀胱鏡への計測機能の付加について)" 第79回日本泌尿器科学会総会、1991年5月.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Tadashi Hatano 他: "Three dimensional medsurement apparatus attachable to cystoscope" 21st.ICS meeting 1991.10.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Tadashi Hatano 他: "PC-based three dimensional mapping device for cystoscopy(with actvally neasured clonical data)" American Urological association meeting 1994.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 秦野直 他: "3次元マッピング装置による膀胱内計測方法" 第80回日本泌尿器科学会総会、1992年4月.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 我喜屋宗久,秦野直 他: "内視鏡用三次元位置測定装置の臨床応用" 第81回日本泌尿器科学会総会、1993年4月.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 我喜屋宗久,秦野直 他: "小児膀胱尿管逆流現象における尿管口位置の検討(内視鏡用三次元マッピング装置によるコンピュータ解析)" 第82回日本泌尿器科学会総会、1994年4月.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 秦野 直、早川 正道、大澤 炯: "三次元マッピング装置により膀胱内計測方法" 第80回日本泌尿器科学会1992,4,16.

    • Related Report
      1992 Annual Research Report
  • [Publications] 秦野 直、川村 猛: "内視鏡用三次元位置測定装置の臨床応用" 第81回日本泌尿器科学会1993,4,12.

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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