| Japanese |
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| Title | 肺換気・血流検査における2核種同時SPECT |
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| Subtitle | 原著 |
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| Authors | 後藤英介*, 川上憲司*, 高橋珠*, 守谷悦男*, 関根広*, 大脇和彦*, 中川昌之*, 島田孝夫** |
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| Authors(kana) | |
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| Organization | *東京慈恵会医科大学放射線医学教室, **第三内科学教室 |
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| Journal | 核医学 |
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| Volume | 29 |
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| Number | 10 |
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| Page | 1177-1184 |
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| Year/Month | 1992/10 |
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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」81mKrと99mTc-MAAによる2核種同時SPECTの有用性について, 各種肺疾患11例を対象として検討した. 両核種のクロストークを検討したあと, SPECTによる換気・血流分布をプラナー像と対比した. 99mTcウィンドウに対する81mKrのクロストークは, 81mKr 370MBq, 99mTc-MAA 185MBqを使用した場合, in vivoにおいて7.5%であった. 疾患例を対象に, 換気・血流分布をhigh V/Qとlow V/Qに分類し, 2核種同時SPECTとプラナー像を対比した結果, low V/Qに関しては2核種同時SPECTで大きく評価された. high V/Q areaの大きさに関しても, 両者の間に有意差を認めたが, その差はlow V/Qに比較して小さかった. 2核種同時SPECTは, low V/Q areaの検出に有用と思われるが, 肺塞栓症などの換気・血流ミスマッチにおける血流欠損の形状や深さをより明瞭に描出するのにもすぐれていると思われた. |
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| Practice | 臨床医学：一般 |
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| Keywords | Dual nuclides SPECT, 81mKr, 99mTc-MAA, High V/Q, Low V/Q. |
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| English |
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| Title | Dual Nuclides SPECT for Ventilation and Perfusion Study |
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| Subtitle | Original Articles |
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| Authors | Eisuke GOTO*, Kenji KAWAKAMI*, Tamami TAKAHASHI*, Etsuo MORIYA*, Hiroshi SEKINE*, Kazuhiko OHWAKI*, Masayuki NAKAGAWA*, Takao SHIMADA** |
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| Authors(kana) | |
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| Organization | *Department of Radiology, **Third Department of Internal Medicine, Jikei University School of Medicine |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 29 |
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| Number | 10 |
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| Page | 1177-1184 |
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| Year/Month | 1992/10 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary]Dual nuclides SPECT using 81mKr and 99mTc-MAA for ventilation and perfusion study was performed in 24 subjects. Crosstalk of 81mKr to 99mTc-energy window was about 7.5% when ventilation and perfusion study were performed by 370 MBq of 81mKr gas and 185 MBq of 99mTc-MAA. Areas of low V/Q was significantly larger in SPECT study than in planar study, in 11 cases with various pulmonary diseases. High V/Q mismatches were also more clearly delineated in SPECT than in planar study. Dual nuclides SPECT study has advantages of obtaining V/Q distribution without movement artifacts and of simultaneous acquisition of ventilation and perfusion image. Area of high V/Q became larger in SPECT with crosstalk than in SPECT without crosstalk, but in the low V/Q area no significant difference was noted between SPECT with crosstalk and without crosstalk. |
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| Practice | Clinical medicine |
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| Keywords | Dual nuclides SPECT, 81mKr, 99mTc-MAA, High V/Q, Low V/Q. |
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