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Cross-calibration of pencil-beam (DPX-NT) and fan-beam (QDR-4500C) dual-energy X-ray absorptiometry for sarcopenia
https://doi.org/10.18999/nagjms.77.4.647
https://doi.org/10.18999/nagjms.77.4.647ef973d02-069e-46b2-af36-363071481618
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
20_Ito.pdf (234.3 kB)
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| アイテムタイプ | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2015-11-24 | |||||
| タイトル | ||||||
| タイトル | Cross-calibration of pencil-beam (DPX-NT) and fan-beam (QDR-4500C) dual-energy X-ray absorptiometry for sarcopenia | |||||
| 言語 | en | |||||
| 著者 |
Ito, Kenyu
× Ito, Kenyu× Tsushita, Kazuyo× Muramoto, Akiko× Kanzaki, Hiroki× Nohara, Takashi× Shimizu, Hitomi× Nakazawa, Tomoko× Harada, Atsushi |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | sarcopenia | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | dual-energy X-ray absorptiometry | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | calibration | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | pencil-beam | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | fan-beam | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Sarcopenia, defined as the loss of muscle mass accompanied by weakness, is an important factor leading to frailty and is a growing concern in the aging Japanese society. Muscle mass can be calculated by dualenergy X-ray absorptiometry (DXA), but results differ between devices produced by different manufactures. Thus, cross-calibration is needed to compare body composition results in multicenter trials or when scanners are replaced. The purpose of this study was to perform an in vivo calibration of total body scans between pencil-beam (DPX-NT, GE Healthcare) and fan-beam (QDR-4500C, Hologic Inc.) DXA units. A total 30 subjects (15 women, 15 men, mean age = 35 years, range 22–49 years) were recruited. The lumbar bone mineral density (BMD), femoral neck BMD, appendicular fat and lean body mass, and the appendicular skeletal muscle mass index (ASMI) were highly correlated (r = 0.979–0.993, r2 = 0.889–0.977). The conversion formulas were as follows: lumbar BMD, Y = –0.08 + 1.16X (X = QDR-4500C, Y = DPX-NT), femoral neck BMD, Y = –0.015 + 1.11X, and ASMI Y = 0.92 + 0.90X. There is excellent comparability between the DPX-NT and the QDR-4500C DXA units. However, cross-calibration equations are required to assess muscle volume, fat, and ASMI in multicenter studies investigating sarcopenia. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | Nagoya University Graduate School of Medicine, School of Medicine | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | departmental bulletin paper | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| ID登録 | ||||||
| ID登録 | 10.18999/nagjms.77.4.647 | |||||
| ID登録タイプ | JaLC | |||||
| 関連情報 | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.med.nagoya-u.ac.jp/medlib/nagoya_j_med_sci/774.html | |||||
| ISSN（print） | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0027-7622 | |||||
| ISSN（Online） | ||||||
| 収録物識別子タイプ | EISSN | |||||
| 収録物識別子 | 2186-3326 | |||||
| 書誌情報 |
en : Nagoya Journal of Medical Science 巻 77, 号 4, p. 647-652, 発行日 2015-11 |
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| 著者版フラグ | ||||||
| 値 | publisher | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/23229 | |||||
| 識別子タイプ | HDL | |||||
