| Japanese |
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| Title | 急性心筋梗塞におけるTl-201肺内取り込み - thallium lung uptake images (TLI) による評価 - |
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| Subtitle | 原著 |
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| Authors | 田中健*, 木全心一*, 広沢弘七郎*, 日下部きよ子**, 重田帝子**, 伊藤幸義***, 清水陽一***, 田中寿英***, 阿部光樹***, 松田三和***, 小船井良夫***, 上田英雄*** |
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| Authors(kana) | |
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| Organization | *東京女子医科大学日本心臓血圧研究所, **放射線科, ***榊原記念病院 |
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| Journal | 核医学 |
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| Volume | 22 |
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| Number | 3 |
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| Page | 321-330 |
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| Year/Month | 1985/3 |
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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」急性心筋梗塞における201Tl肺内取り込みを肺野最高カウントと心筋最高カウントとの比 (LHR : thallium lung heart ratio) を用いて評価した. 対象23例をLHRによってG-0 (0.6>LHR) , G-1 (0.8>LHR≧0.6) , G-2 (LHR≧0.8) に分類し, 以下の結果を得た. G-0 (7例, mPw : 11.1±4.2mmHg, EF : 51.4±9.7%) G-1 (7例, mPw : 16.9±4.1mmHg, EF : 42.7±6.7%) G-2 (9例, mPw : 21.1±4.7mmHg, EF : 23.5±5.6%) mPw : 平均肺動脈楔入圧, EF : 左心駆出率 LHRはmPw=1.1+21.3LHR (r=0.75) , EF=80.2-57.3LHR (r=-0.85) の関係を示した. G-0であることはmPw<18mmHgに対して, G-2であることはEF≦30%に対してspecificity 100%であった. 201Tl肺内取り込み像 (thallium lung uptake images : TLI) によって201Tl肺内取り込みは肺内に一様に生じるのでなく, まず右下肺野に生じ, 血行動態の悪化とともに上肺野に生じることが明らかとなった. 201Tl肺内取り込みは容易に評価し得て, しかも急性心筋梗塞の病態評価に有用なことが示された. 201Tl肺内取り込みと肺うっ血との関連に言及した. |
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| Practice | 臨床医学：一般 |
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| Keywords | Thallium lung uptake images (TLI) , Acute myocardial infarction, Hemodynamic parameters, Thallium lung heart ratio (LHR) |
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| English |
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| Title | Thallium Lung Uptake Images (TLI) in Patients with Acute Myocardial Infarction |
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| Subtitle | Original Articles |
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| Authors | Takeshi TANAKA*, Shinichi KIMATA*, Koshichiro HIROSAWA*, Kiyoko KUSAKABE**, Teiko SHIGETA**, Yukiyoshi ITO***, Youichi SHIMIZU***, Toshihide TANAKA***, Mitsuki ABE***, Miwa MATSUDA***, Yoshio OBUNAI***, Hideo UEDA*** |
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| Authors(kana) | |
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| Organization | *Heart Institute Japan, Tokyo Women's Medical College, **Department of Radiology, Tokyo Women's Medical College, ***Sakakibara Memorial Hospital |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 22 |
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| Number | 3 |
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| Page | 321-330 |
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| Year/Month | 1985/3 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] To determine wether thallium lung uptake images (TLI) can be used as a noninvasive method to estimate any of hemodynamic changes in patients with acute myocardial infarction (AMI) , TLI were evaluated in 23 patients with AMI. TLI were easily obtained for additional 5 minutes following conventional myocardial imaging. All patients underwent multigated blood pool imagings and cardiac catheterization. TLI were estimated by comparing maximal lung counts with maximal myocardial counts (thallium lung heart ratio : LHR) . Patients were classified to G-0 (0.6>LHR) , G-1 (0.8>LHR>-0.6) and G-2 (LHR>-0.8) . Mean pulmonary artery wedge pressure (mPw) and ejection fraction (EF) of G-0 (7 patients) , G-1 (7 patients) and G-2 (9 patients) were 11.4+-4.2, 16.9+-4.1, 21.1+-4.7mmHg and 51.4+-9.7, 42.7+-6.7, 23.5+-5.6% respectively. This classification was statistically significant. Good correlation (mPw=1.1+21.3 LHR, r=0.75 and EF=80.2-57.3LHR, r=-0.85) was obtained. The specificity of G-0 for mPw<18mmHg was 100% (10/10) and that of G-2 for EF<-30%was also 100% (13/13) . From various types of TLI it was noted that thallium-201 did not accumulate uniformly over lung area and usually maximal thallium-201lung uptake was noted at basal zone of right lung. Thallium-201lung uptake in the upper zone of lung might increase according to hemodynamic deterioration. TLI were clinically useful images for separating high and low risk groups of patients with AMI. |
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| Practice | Clinical medicine |
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| Keywords | Thallium lung uptake images (TLI) , Acute myocardial infarction, Hemodynamic parameters, Thallium lung heart ratio (LHR) |
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