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Multicenter cross-calibration of I-123 metaiodobenzylguanidine heart-tomediastinum ratios to overcome camera-collimator variations
http://hdl.handle.net/2297/39687
http://hdl.handle.net/2297/39687a22d3d8e-593d-430e-b66d-6c7c43d089a4
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ME-PR-NAKAJIMA-K-970.pdf (955.8 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2017-10-03 | |||||
| タイトル | ||||||
| タイトル | Multicenter cross-calibration of I-123 metaiodobenzylguanidine heart-tomediastinum ratios to overcome camera-collimator variations | |||||
| 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 | |||||
| 著者 |
Nakajima, Kenichi
× Nakajima, Kenichi× Okuda, Koichi× Yoshimura, Mana× Matsuo, Shinro× Wakabayashi, Hiroshi× Imanishi, Yasuhiro× Kinuya, Seigo |
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| 書誌情報 |
Journal of Nuclear Cardiology 巻 21, 号 5, p. 970-978, 発行日 2014-10-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1071-3581 | |||||
| NCID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11016223 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1007/s12350-014-9943-z. | |||||
| 出版者 | ||||||
| 出版者 | American Society of Nuclear Cardiology (ASNC) / Springer Verlag (Germany) | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Background The heart-to-mediastinum ratio (HMR) of 123I-metaiodobenzylguanidine (MIBG) showed variations among institutions and needs to be standardized among various scinticamera-collimator combinations. Methods A total of 225 phantom experiments were performed in 84 institutions to calculate cross-calibration coefficients of HMR. Based on phantom studies, a conversion coefficient for each camera-collimator system was created, including low-energy (LE, n = 125) and a medium-energy (ME, n = 100) collimators. An average conversion coefficient from the most common ME group was used to calculate the standard HMR. In clinical MIBG studies (n = 52) from three institutions, HMRs were standardized from both LE- and ME-type collimators and classified into risk groups of <1.60, 1.60-2.19, and ≥2.20. Results The average conversion coefficients from the individual camera-collimator condition to the mathematically calculated reference HMR ranged from 0.55 to 0.75 for LE groups and from 0.83 to 0.95 for ME groups. The conversion coefficient of 0.88 was used to unify HMRs from all acquisition conditions. Using the standardized HMR, clinical studies (n = 52) showed good agreement between LE and ME types regarding three risk groups (κ = 0.83, P < .0001, complete agreement in 90%, 42% of the patients reclassified into the same risk group). Conclusion By using the reference HMR and conversion coefficients for the system, HMRs with various conditions can be converted to the standard HMRs in a range of normal to low HMRs. | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
