| Japanese |
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| Title | 心拍同期心プール断層法の高次位相解析の試み |
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| Subtitle | 短報 |
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| Authors | 津田隆俊*, 久保田昌宏*, 大久保整*, 晴山雅人*, 高橋貞一郎*, 森田和夫*, 飯村攻**, 高田竹人**, 田中繁道**, 井上恵**, 中田智明** |
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| Authors(kana) | |
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| Organization | *札幌医科大学放射線科, **第二内科 |
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| Journal | 核医学 |
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| Volume | 21 |
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| Number | 11 |
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| Page | 1469-1473 |
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| Year/Month | 1984/11 |
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| Article | 報告 |
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| Publisher | 日本核医学会 |
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| Abstract | 「I. はじめに」マルチゲート心プールイメージの各画素の時間容量曲線をフーリエ解析する位相解析法は, 虚血性心疾患における左室機能の評価や局所壁運動異常の検出, 刺激伝導障害の診断等に応用され, その臨床的有用性が近年報告されている. しかし, 従来の1方向からのプールイメージの位相解析法は2次元的解析であり, 血液プールの重なりが避けられないため, 壁運動の時間的および空間的異常を正しく評価することが困難な場合が少なくなかった. そこで著者らは, 壁運動を3次元的に解析するため, 回転型ガンマカメラによる心拍同期心プール断層法を試み, 厚さ1画素 (6 mm) の断層像の時間放射能曲線に位相解析法を応用し, 若干の知見を得たので以下に報告する. 「II. 対象および方法」著者らは1983年10月からこれまで, 虚血性心疾患17例, 刺激伝導系異常6例, 心筋症1例, 弁膜疾患2例, 正常者3例に心拍同期心プール断層法 (GPECT: gated pool emission computed tomography) を試みてきた. |
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| Practice | 臨床医学：一般 |
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| Keywords | Gated blood pool ECT, Phase analysis, Functional image |
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| English |
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| Title | Clinical Trial of Higher Order Phase Analysis in ECG Gated Blood Pool Emission Computed Tomography |
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| Subtitle | Short Communications |
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| Authors | Takatoshi TSUDA*, Masahiro KUBOTA*, Osamu OHKUBO*, Masato HAREYAMA*, Teiichiro TAKAHASHI*, Kazuo MORITA*, Osamu IIMURA**, Takehito TAKADA**, Shigemichi TANAKA**, Megumi INOUE**, Tomoaki NAKATA** |
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| Authors(kana) | |
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| Organization | *Department of Radiology, **Second Department of Internal Medicine, Sapporo Medical College |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 21 |
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| Number | 11 |
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| Page | 1469-1473 |
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| Year/Month | 1984/11 |
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| Article | Report |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] Clinical usefulness of phase analysis in ECG gated blood pool angiograms has been confirmed for evaluating global and regional cardiac function in recent years: however, equilibrium radionuclide angiograms collected in the one directional projection has a limitation to detect precisely and easily spatial and temporal wall motion abnormality. Using a rotating dual gamma camera system (ZLC-75), we applied a fundamental and higher order Fourier analysis to gated blood pool computed tomography (GPECT) in various heart diseases. Conventional modified left anterior oblique blood pool scans were also performed, and their Fourier analysis was carried out. In GPECT, we reconstructed a series of "transverse view" tomograms and, thereafter, "coronal", "sagittal" and "four-chamber" view tomograms were reorganized. In all cases of myocardial infarction, 1-st and higher order functional images of GPECT showed an abnormality in agreement with their infarct sites. In this paper we demonstrated the results of a patient with old myocardial infarction of the inferior and posterior wall. The gated planar image could point out the global left ventricular wall motion abnormality but could not detect the location of its infarct site. On the other hand, from the functional images of GPECT we can easily recognize the regional wall motion abnormality of the infarct site. Phase analysis of GPECT had advantages in avoiding overlap of blood pools and in a detailed estimation of the regional cardiac function. In avoiding overlap blood pools, the quantitative evaluation of cardiac function can be performed in patients with various heart diseases more precisely and easily by phase analysis of GPECT, compared with conventional gated planar scans. |
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| Practice | Clinical medicine |
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| Keywords | Gated blood pool ECT, Phase analysis, Functional image |
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