胸部X線動画像におけるピクセル値変化量計測の有用性 :

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タイトル別名
  • Usefulness of measuring changes in pixel value on breathing chest radiographs:
  • 放射性同位元素 (RI) 計数値との比較
  • Comparison with count of radioactive isotope

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説明

X-ray translucency of the lungs changes depending on inspired volume. In this study, the usefulness of measuring changes in pixel value on dynamic chest radiographs was assessed in comparison with count of radioactive isotope. In 12 abnormal subjects, there was a good correlation between them (r=0.77) . In eight normal controls, the changes in average pixel value measured in lung unit were almost equal in the right and left lungs, which was consistent with normal respiratory physiology. The results indicated that ventilation performance could be evaluated based on the changes in pixel value on dynamic chest radiographs.

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