| Japanese |
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| Title | 位相解析法による各種心疾患のマルチゲート心プール像の評価 |
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| Subtitle | 原著 |
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| Authors | 高橋恒男*, 桂川茂彦*, 柳澤融* |
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| Organization | *岩手医科大学放射線医学教室 |
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| Journal | 核医学 |
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| Volume | 19 |
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| Number | 2 |
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| Page | 239-244 |
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| Year/Month | 1982/3 |
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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」In vivo標識赤血球(99mTc-RBC)による心電図同期心プールスキャン像にフーリエ解析法を応用し, 各マトリックスごとの振幅と位相をパラメータとする心functional imageを作成し, 各種心疾患(21例)(心筋梗塞, 完全右脚ブロック, ペースーメーカ挿入例), 呼吸器疾患(4例), 対照例(8例)における心室収縮時相, 局所的収縮異常などの心室収縮様式を分析し, さらに左室機能との関連を検討した. その結果, 今までの心プールスキャン法では得られなかった時間的な収縮異常を検出し, 左右心室間のmatchingの良否を客観的に評価でき, 心筋梗塞例における左室ポンプ機能とasynchronismの程度が逆相関することを示唆し得た. したがって, 本法は心室機能評価の一指標として今後重視されるものと考える. |
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| Practice | 臨床医学：一般 |
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| Keywords | Temporal Fourier analysis, Gated blood pool study, Phase histogram, Regional wall motion abnormality, Asynchronism. |
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| English |
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| Title | Evaluation of The Cardiac Multigated Blood Pool Study with Various Heart Disease Using Phase Analysis |
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| Subtitle | |
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| Authors | Tsuneo TAKAHASHI, Shigehiko KATSURAGAWA, Toru YANAGISAWA |
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| Authors(kana) | |
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| Organization | Department of Radiology, School of Medicine, Iwate Medical University |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 19 |
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| Number | 2 |
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| Page | 239-244 |
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| Year/Month | 1982/3 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | Temporal Fourier analysis was applied to the processing of equilibrium gated blood pool studies on a pixel-by-pixel basis, to obtain information about the pattern of ventricular(LV & RV)regional wall motion and co-ordination in normal hearts and in others with myocardial infarction and conduction abnormalities(RBBB and pacemaker implantation). In order to evaluate them quantitatively we have constructed a distribution histogram of the LV&RV phase in radian versus activity weighted pixel and calculated the delay of phase between both ventricules. The phase image indicated almost synchronous contruction of the both ventricles with a narrow peak in their histogram in the normal cases. On the contrary, in the cases of myocardial infarction and conduction abnormalities, their phase image indicated regional wall motion abnormalities and asynergies with broader peak in their histogram, so that the delay of phase between two ventricles was remarkable. In conclusion, our study indicates that cardiac functional imaging by phase analysis provides an accurate, non-invasive visual means of detecting and localizing abnormalities of ventricular contraction. |
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| Practice | Clinical medicine |
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| Keywords | Temporal Fourier analysis, Gated blood pool study, Phase histogram, Regional wall motion abnormality, Asynchronism. |
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