論文

査読有り
2017年7月

Use of dual-energy computed tomography to measure skeletal-wide marrow composition and cancellous bone mineral density

JOURNAL OF BONE AND MINERAL METABOLISM
  • Luke Arentsen
  • Karen E. Hansen
  • Masashi Yagi
  • Yutaka Takahashi
  • Ryan Shanley
  • Angela McArthur
  • Patrick Bolan
  • Taiki Magome
  • Douglas Yee
  • Jerry Froelich
  • Susanta K. Hui
  • 全て表示

35
4
開始ページ
428
終了ページ
436
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1007/s00774-016-0796-1
出版者・発行元
SPRINGER JAPAN KK

Temporal and spatial variations in bone marrow adipose tissue (MAT) can be indicative of several pathologies and confound current methods of assessing immediate changes in bone mineral remodeling. We present a novel dual-energy computed tomography (DECT) method to monitor MAT and marrow-corrected volumetric BMD (mcvBMD) throughout the body. Twenty-three cancellous skeletal sites in 20 adult female cadavers aged 40-80 years old were measured using DECT (80 and 140 kVp). vBMD was simultaneous recorded using QCT. MAT was further sampled using MRI. Thirteen lumbar vertebrae were then excised from the MRI-imaged donors and examined by microCT. After MAT correction throughout the skeleton, significant differences (p < 0.05) were found between QCT-derived vBMD and DECT-derived mcvBMD results. McvBMD was highly heterogeneous with a maximum at the posterior skull and minimum in the proximal humerus (574 and 0.7 mg/cc, respectively). BV/TV and BMC have a nearly significant correlation with mcvBMD (r = 0.545, p = 0.057 and r = 0.539, p = 0.061, respectively). MAT assessed by DECT showed a significant correlation with MRI MAT results (r = 0.881, p < 0.0001). Both DECT- and MRI-derived MAT had a significant influence on uncorrected vBMD (r = -0.86 and r = -0.818, p ae<currency> 0.0001, respectively). Conversely, mcvBMD had no correlation with DECT- or MRI-derived MAT (r = 0.261 and r = 0.067). DECT can be used to assess MAT while simultaneously collecting mcvBMD values at each skeletal site. MAT is heterogeneous throughout the skeleton, highly variable, and should be accounted for in longitudinal mcvBMD studies. McvBMD accurately reflects the calcified tissue in cancellous bone.

リンク情報
DOI
https://doi.org/10.1007/s00774-016-0796-1
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000404665600009&DestApp=WOS_CPL
ID情報
  • DOI : 10.1007/s00774-016-0796-1
  • ISSN : 0914-8779
  • eISSN : 1435-5604
  • Web of Science ID : WOS:000404665600009

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