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Measurement of cerebral blood flow by the autoradiographic method with N-isopropyl-4-[I-123] iodoamphetamine: comparison of radiopharmaceuticals marketed by different companies in Japan.
https://repo.qst.go.jp/records/45582
https://repo.qst.go.jp/records/45582d3b2c4ef-715f-4799-a24d-e37d9ef924d0
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-07-17 | |||||
タイトル | ||||||
タイトル | Measurement of cerebral blood flow by the autoradiographic method with N-isopropyl-4-[I-123] iodoamphetamine: comparison of radiopharmaceuticals marketed by different companies in Japan. | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Ogura, Toshiyuki
× Ogura, Toshiyuki× Ito, Hiroshi× et.al× 伊藤 浩 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | OBJECTIVE: Iodine-123-labeled N-isopropyl-4-iodoamphetamine (IMP) is used as a tracer for the measurement of cerebral blood flow (CBF) by single-photon emission computed tomography (SPECT). Two IMP products, IMP(A) (Nihon Medi-Physics Co., Ltd.) and IMP(B) (FUJIFILM RI Pharma Co., Ltd.), produced by different radiopharmaceutical companies are marketed for clinical use in Japan. Although no significant difference in whole-body distribution between the two products has been reported, a significant difference in the radioactivity of the octanol-extracted fraction in whole blood between the two products has been reported in humans. In this study, CBF values obtained by the autoradiographic (ARG) method obtained from both IMP(A) and IMP(B) were compared in the same human subjects. METHODS: SPECT studies were performed on 6 healthy subjects with the use of both IMP(A) and IMP(B). Standard input functions used in the ARG method were obtained for both IMP(A) and IMP(B) from 5 additional healthy subjects. RESULTS: Significant differences were found between CBF values when SPECT data with IMP(A) was combined with the standard input function for IMP(B) (37.7 +/- 3.7 mL/100 g/min at a mid-scan time of 30 min) and SPECT data with IMP(B) was combined with the standard input function for IMP(A) (50.7 +/- 8.9 mL/100 g/min). Nearly the same CBF values were found when SPECT data with IMP(A) was combined with the standard input function for IMP(A) (43.1 +/- 4.4 mL/100 g/min) and SPECT data with IMP(B) was combined with the standard input function for IMP(B) (44.2 +/- 7.6 mL/100 g/min). CONCLUSIONS: Our results suggest that the appropriate standard input function should be used, according to the IMP product used, in the calculation of CBF by the ARG method. | |||||
書誌情報 |
Annals of Nuclear Medicine 巻 23, 号 4, p. 355-361, 発行日 2009-06 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0914-7187 |