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Estimation of radioactivity in single photon emission computed tomography for sentinel lymph node biopsy in a torso phantom study
http://hdl.handle.net/10748/7612
http://hdl.handle.net/10748/7612b26510f7-d794-447d-8b8b-1f83573dfbed
名前 / ファイル | ライセンス | アクション |
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10801-001.pdf (2.6 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-04-14 | |||||
タイトル | ||||||
タイトル | Estimation of radioactivity in single photon emission computed tomography for sentinel lymph node biopsy in a torso phantom study | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | sentinel lymph node | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | total radioactivity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | SPECT | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | quantification | |||||
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 | |||||
著者 |
Kitamura, Hideaki
× Kitamura, Hideaki× Kono, Yuzuru× Murano, Takeshi× Hiroi, Kenta× Ihara, Kanyu× Aso, Tomohiko× Inoue, Kazumasa× Fukushi, Masahiro |
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著者(ヨミ) |
キタムラ, ヒデアキ
× キタムラ, ヒデアキ× コウノ, ユズル× ムラノ, タケシ× ヒロイ, ケンタ× イハラ, カンユウ× アソウ, トモヒコ× イノウエ, カズマサ× フクシ, マサヒロ |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Objectives: Number of lymph nodes to be removed are determined from residual counts. Estimating residual radioactivity in lymphatic nodes before a biopsy in advance is useful for reducing surgical operation time. The purpose of this study was to estimate total radioactivity of a small hot spot in single-photon emission computed tomography (SPECT) of a torso phantom. Methods: Cross-calibration study was performed to convert counts in SPECT images to radioactivity. A simulation study was performed to estimate the size of volume of interest (VOI) covering a hot spot corrupted with full width at half maximum (FWHM) between 8 and 16 mm. The estimation of total radioactivity was validated in a torso phantom study using small sources. Results: True radioactivity was approximately equal to integrated values of hot spots using the VOI with a diameter of 40 mm in our simulation study. The difference was less than18% in cases of more than 9.4 kBq. Conclusions: The total radioactivity in small sources simulating a typical sentinel node was estimated from SPECT images using a VOI of 40 mm in a torso phantom study. Because the difference from actual values were less than 10% on average when radioactivities were more than 9.4 kBq, the total radioactivity of a lymph node can be estimated in a clinical examination. | |||||
書誌情報 |
Nuclear Medicine Communications 巻 36, 号 6, p. 646-650, 発行日 2015-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 01433636 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10624879 | |||||
PubMed番号 | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | PMID | |||||
関連識別子 | 25738561 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | http://doi.org/10.1097/MNM.0000000000000294 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article |