Japanese
Titlein vivo 99mTc-赤血球標識を用いた心拍同期心プール・スキャンによる左室容積の解析
Subtitle原著
Authors林田孝平*, 西村恒彦*, 植原敏勇*, 大嶺広海*, 小塚隆弘*
Authors(kana)
Organization*国立循環器病センター放射線診療部
Journal核医学
Volume19
Number6
Page943-950
Year/Month1982/7
Article原著
Publisher日本核医学会
Abstract「要旨」99mTc-赤血球を用いた心拍同期心プール・スキャンによる左室カウントから左室容積を解析する方法を開発した. (1)心ファントム実験では, 既知の容積とカウント数とはよく一致した. (2)虚血性心疾患30症例で心拍同期心プール・スキャンを施行した. 各患者の標準化のため, 99mTc-の投与量と循環血液量で左室カウントを補正した. 左室駆出率を求め, 同時に施行した色素希釈法による分時拍出量を除して左室容積を算出した. 補正した左室カウント(x)と色素希釈法を併用した左室容積(y)との相関は, 0.962と高く, 一次回帰式y=40.89x+30.03を得た. (3)この回帰式を用いて, 各種心疾患45症例の左室容積を求めた. (3)このうち32症例では, 2週間以内にシネ撮影を施行し, その左室容積と心拍同期心プール・スキャンにより推定した左室容積の間によい相関を得た. 以上により, 本法を利用すれば, 非観血的に左室容積の絶対値の推定が可能と結論した.
Practice臨床医学：一般
Keywordsleft ventricular volumes, non-geometric volume determination, in vivo 99mTc-RBC labeling, gated cardiac pool scan.
English
TitleNongeometric Determination of Left Ventricular Volumes by Gated Equilibrium Cardiac Pool Scan
Subtitle
AuthorsKohei HAYASHIDA, Tsunehiko NISHIMURA, Toshiisa UEHARA, Hiromi OHMINE, Takahiro KOZUKA
Authors(kana)
OrganizationDepartment of Diagnostic Radiology National Cardiovascular Center
JournalThe Japanese Journal of nuclear medicine
Volume19
Number6
Page943-950
Year/Month1982/7
ArticleOriginal article
PublisherTHE JAPANESE SOCIETY OF NUCLEAR MEDICINE
Abstract[Summary]This study was made for utility of nongeometric count method to determine volumes of left ventricle. Assisted with dye dilution method, we tried to analyse absolute left ventricular volume (LVV) from left ventricular counts (LVC). The conclusion was as follows. 1) Using cardiac phantom, the increment of count rates corresponded well with that of measured volumes from 50 to 350 ml. 2) In 30 cases of ischemic heart disease, LVC were calculated from gated pool cardiac scan by in vivo labeling of RBC with 99mTc. For standardization, LVC were corrected by administrated dose of 99mTc and total blood volume with counts in 0.1 ml of blood pool. On the other hand, LVV were obtained from cardiac output by dye dilution method. Comparing standardized LVC (x) with LVV (y), there was good correlation (R=0.962) with an equation of y=40.89 x + 30.08. 3) In 45 cases of various cardiac disease, LVV could determine, as real quantity, from standardized LVC using the equation. In 32 of 45 cases, the equation derived LVV was correlated well with angiographic LVV. We concluded that determination of left ventricular volumes by gated cardiac pool scan could be used as a noninvasive means of evaluating left ventricular function.
PracticeClinical medicine
Keywordsleft ventricular volumes, nongeometric volume determination, in vivo 99mTc-RBC labeling, gated cardiac pool scan.

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