| Japanese |
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| Title | Count-based法を用いた平衡時心電図同期心プールシンチグラフィによる左室絶対容積の算出 - 第二報 臨床例による検討 - |
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| Subtitle | 原著 |
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| Authors | 安野泰史*, 竹内昭*, 江尻和隆*, 古賀佑彦*, 古田敏也**, 下方辰幸**, 黒川洋**, 金子堅三**, 近藤武**, 渡辺佳彦**, 水野康** |
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| Authors(kana) | |
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| Organization | *藤田学園保健衛生大学医学部放射線科, **内科 |
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| Journal | 核医学 |
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| Volume | 24 |
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| Number | 12 |
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| Page | 1723-1729 |
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| Year/Month | 1987/12 |
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| Article | 原著 |
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| Publisher | 日本核医学会 |
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| Abstract | 「要旨」心疾患22例を対象に, 99mTc生体内赤血球標識法による平衡時心電図同期心プールシンチグラフィを施行した. 各種のTransmission Factor(TF)を用いて補正を加えたcount-based法により, 左室絶対容積, 心拍出量を算出し, Swan-Ganzカテーテルを用いた熱希釈法により求めた心拍出量と比較検討した. その結果, 補正をしない(TF=1)場合はY=0.23X+0.08, r=0.628(p<0.002)の相関を認めた. また左胸壁から左室重心までの深さをdとしたとき, 水中の線減弱係数による補正を行った(TF=e-0.15d)場合はY=1.10X-0.47, r=0.914(p<0.001)で, CTより求められた人体の平均線減弱係数による補正を行った(TF=e-0.13d)場合はY=-0.89X-0.30, r=0.912(p<0.001)であり, 水ファントム実験から求めた線減弱と散乱線の両方を加味した補正を行った(TF=1-(1-e-0.125d)1.26)場合はY=0.71X-0.23, r=0.911(p<0.001)の相関を認めた. したがって, count-based法により左室容積を求めるためには, 水中の線減弱補正を行えば十分臨床に利用可能であると思われた. |
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| Practice | 臨床医学：一般 |
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| Keywords | Count-based method, Gated equilibrium blood pool scintigraphy, Left ventricular volume, Heart, Clinical study. |
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| English |
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| Title | Evaluation of Absolute Left Ventricular Volume by Gated Equilibrium Blood Pool Scintigraphy Using Count-Based Method : Clinical Study |
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| Subtitle | - Original Articles - |
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| Authors | Hirofumi ANNO*, Akira TAKEUCHI*, Kazutaka EJIRI*, Sukehiko KOGA*, Toshiya FURUTA**, Tatsuyuki SHIMOKATA**, Hiroshi KUROKAWA**, Kenzou KANEKO**, Takeshi KONDO**, Yoshihiko WATANABE**, Yasushi MIZUNO** |
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| Authors(kana) | |
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| Organization | *Department of Radiology, **Department of Internal Medicine, Fujita-Gakuen Health University School of Medicine |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 24 |
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| Number | 12 |
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| Page | 1723-1729 |
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| Year/Month | 1987/12 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | In order to estimate the absolute left ventricular volume (LVV) and the cradiac output (CO), gated equilibrium blood pool scintigraphy was performed. CO by radionuclide (RN) method was compared with CO simultaneously measured by thermodilution method (TDM) using Swan-Ganz catheter in 22 patients with cardiac diseases. To improve these determinations by RN, LVV using the count-based method was corrected by each of four transmission factors (TF1=1, TF2(water)=e-0.15d, TF3=e-0.13d and TF4=1-(1-e-0.125d)1.26 d:depth). We compared CO by RN with by TDM. CO by RN was significantly correlated with TDM: TF1 (CO(RN)=0.23×CO(TDM)+0.88, r=0.628, p<0.002), TF (CO(RN)=1.10×CO(TDM)-0.47, r=0.914, p<0.001), TF3 (CO(RN)=0.89×CO (TDM)-0.30, r=0.912, p<0.001), and TF4 (CO(RN)=0.71×CO (TDM)-0.23, r=0.911, p<0.001), respectively. These results indicate that the linear sttenuation correction is necessary and sufficient for accurate measurement of LVV and CO by RN using count-based method in clinical use. |
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| Practice | Clinical medicine |
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| Keywords | Count-based method, Gated equilibrium blood pool scintigraphy, Left ventricular volume, Heart, Clinical study. |
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