小児心臓血管造影における心拍差分処理を用いたDSA法の開発

  • 日木 あゆみ
    茨城県立こども病院放射線技術科
  • 本元 強
    茨城県立こども病院放射線技術科 金沢大学大学院医学系研究科保健学専攻
  • 真田 茂
    金沢大学医薬保健研究域保健学系
  • 林 則夫
    群馬県立県民健康科学大学診療放射線学部

書誌事項

タイトル別名
  • Development of Digital Subtraction Angiography Method for Pediatric Cardiac Angiography Using Subtraction Technique with Heart Rate
  • 臨床技術 小児心臓血管造影における心拍差分処理を用いたDSA法の開発
  • リンショウ ギジュツ ショウニ シンゾウ ケッカンゾウエイ ニ オケル シンパク サブン ショリ オ モチイタ DSAホウ ノ カイハツ

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抄録

Digital subtraction angiography (DSA) has been used in head and abdomen. However, in recent years, the use of cardiac DSA has been reported. In this report, we discuss the development of a DSA method with heart rate to clearly visualize blood vessels of pediatric patients. The patients included five children who underwent pulmonary artery angioplasty. We used a process to resize the original images and performed two kinds of subtraction methods as well as visually evaluated the images and performed comparisons between pairs of images using the Scheffe’s method. Subtraction techniques were used to eliminate motion artifacts of the heart, thoracic vertebra, ribs, and diaphragm. Visualization of the image of blood vessels of pulmonary arteries using the subtraction technique with heart rate was superior to the visualization of the conventional DSA images of peripheral blood vessels of the lung and pulmonary arteries. Use of subtraction technique with heart rate makes it possible to obtain more detailed information on pediatric cardiac angiography images noninvasively.

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