Development of Temporal Subtraction Technique Based on Previous and Current Thoracic MDCT Image Sets

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  • MYYAKE Noriaki
    Graduate School of Engineering, Kyushu Institute of Technology
  • KIM Hyoungseop
    Graduate School of Engineering, Kyushu Institute of Technology
  • MAEDA Shinya
    Graduate School of Engineering, Kyushu Institute of Technology
  • TAN Joo Kooi
    Graduate School of Engineering, Kyushu Institute of Technology
  • ISHIKAWA Seiji
    Graduate School of Engineering, Kyushu Institute of Technology
  • MURAKAMI Seiichi
    Graduate School of Engineering, Kyushu Institute of Technology:Department of Radiology, University of Occupational & Environmental Health
  • AOKI Takatoshi
    Department of Radiology, University of Occupational & Environmental Health
  • 山本 晃義
    Graduate School of Engineering, Kyushu Institute of Technology:Kyoaikai Tobata Kyoritsu Hospital

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Other Title
  • 過去・現在の胸部MDCT像セットを用いた経時的差分像技術の開発
  • カコ ゲンザイ ノ キョウブ MDCTゾウ セット オ モチイタ ケイジテキ サブンゾウ ギジュツ ノ カイハツ

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Abstract

A temporal subtraction image can be used for enhancing interval changes such as shapes of new lesions and the interval changes in existing abnormalities on medical images by removing most of normal structures. There is no technique for image registration based on 3-D thoracic MDCT images until now. In this paper, we propose a new registration method for detecting the temporal changes from MDCT images based on analyzing the vector flow. The new method was applied to 5 clinical cases of MDCT images and satisfactory experimental results are obtained. The registration accuracy was improved obtained experimental results by using vector flow.

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