| Japanese |
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| Title | 99mTc-MIBIと123I-BMIPPを用いた心筋SPECT 2核種同時収集法の検討 - 心筋ファントムを用いた至適ウィンドウ設定の検討 - |
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| Subtitle | 原著 |
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| Authors | 水村直*, 汲田伸一郎*, 隈崎達夫* |
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| Organization | *日本医科大学放射線科 |
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| Journal | 核医学 |
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| Volume | 32 |
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| Number | 2 |
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| Page | 183-190 |
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| Year/Month | 1995/2 |
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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」99mTc-methoxyisobutyl isonitrile (MIBI) とβ-methyl-p-(123I)iodo-phenyl-pentadecanoic acid (BMIPP) の2核種同時収集法におけるcrosstalk (CR) を測定するため心筋ファントムの実験を施行した. 99mTcと123Iの2核種について3種類のウィンドウ幅・4種類のウィンドウ中心で収集を行ったところ, 99mTcウィンドウではウィンドウ設定によらずCRはすべて10.5%以下であった. 一方, 123IウィンドウではCRは17.0%から8.6%の値を示し, ウィンドウ設定によるCRの変動が大きいという結果になった. また, 99mTcと123Iには放射能濃度とRIカウントについて有意な相関 (99mTc, 123I:r=0.98, p<0.0001) がみられた. 収集ウィンドウの設定 (10%幅, 140keV中心の99mTcウィンドウ, 10%幅, 164keV中心の123Iウィンドウ) により99mTc-MIBIと123I-BMIPPの2核種同時収集において良好な画像作成が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 | 99mTc-MIBI, 123I-BMIPP, Crosstalk, Dual isotope SPECT, Simultaneous acquisition |
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| English |
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| Title | A Study of the Simultaneous Acquisition of Dual Energy SPECT with 99mTc and 123I : Evaluation of Optimal Window Setting with Myocardial Phantom |
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| Authors | Sunao MIZUMURA, Shin-ichiro KUMITA, Tatsuo KUMAZAKI |
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| Authors(kana) | |
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| Organization | Department of Radiology, Nippon Medical School |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 32 |
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| Number | 2 |
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| Page | 183-190 |
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| Year/Month | 1995/2 |
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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 examine crosstalks (CRs) between 99mTc-methoxyisobutyl isonitrile (MIBI) and β-methyl-p-(123I)iodophenyl-pentadecanoic acid (BMIPP), myocardial phantom studies of simultaneous acquisition were performed with three window widths and four energies where the window located. CRs in 99mTc window were less than 10.5% regardless of the window settings. CRs in 123I window were ranging from l7.0% to 8.6% depending on the window setting. There were significant correlations between the isotope concentration and counts of 99mTc and 123I, respectively (r=0.98, p<0.0001). We concluded that the optimal window setting of 99mTc-MIBI and 123I-BMIPP (10% width, 140 keV center 99mTc window and 10% width, 164 keV center 123I window) yields good quality images in dual isotope SPECT. |
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| Practice | Clinical medicine |
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| Keywords | 99mTc-MIBI, 123I-BMIPP, Crosstalk, Dual isotope SPECT, Simultaneous acquisition |
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