^<99m>Tc-ECD非侵襲的脳血流定量法 (Brain Uptake Ratio) における入力関数の最適ROI設定位置の決定 Determination of the Optimal ROI Setting Position of the Input Function for the ^<99m>Tc-ethyl Cysteinate Dimmer Brain Uptake Ratio Method

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Determination of the input function for the <sup>99m</sup>Tc-ethyl cysteinate dimmer brain uptake ratio (<sup>99m</sup>Tc-ECD BUR) method as a non-invasive quantitative measurement of cerebral blood flow measurement is of critical importance in order to improve the accuracy of this method. The input functions were experimentally obtained by setting the regions of interest (ROIs) in the ascending aorta, aortic arch, and descending aorta on the 49 chest RI-angio images. rCBFs by the BUR method with 3 input functions of the 6 cases were compared with those by the <sup>123</sup>I-iodoamphetamine (IMP) continuous arterial blood sampling method in order to determine the best location for the ROI of the input function. The input function of the ascending aorta was higher than those of the aortic arch and the descending aorta. The input functions of the aortic arch and the descending aorta decreased due to the origin of the three branches of the right brachiocephalic artery, left subclavian artery, and left common carotid artery. A good correlation was found in the regional cerebral blood flow (rCBF) values between the <sup>123</sup>I-IMP continuous arterial blood sampling method and the <sup>99m</sup>Tc-ECD BUR method with the input function of the ascending aorta. Therefore, the ascending aorta is the best location for the ROI of the input function for the <sup>99m</sup>Tc-ECD BUR method.

収録刊行物

  • 日本放射線技術學會雜誌

    日本放射線技術學會雜誌 68(3), 269-276, 2012-03-20

    公益社団法人 日本放射線技術学会

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各種コード

  • NII論文ID(NAID)
    10030139315
  • NII書誌ID(NCID)
    AN00197784
  • 本文言語コード
    JPN
  • 資料種別
    NOT
  • ISSN
    03694305
  • NDL 記事登録ID
    023640082
  • NDL 請求記号
    Z19-205
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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