Quantifying the bone marrow composition of the healthy adult wrist with dual-energy CT
Müller, F. C., Gosvig, K. K., Mikkel, Ø., Bjarne, R., Rodell, A., Henrik, B., Krauss, B., Gade, J. S. & Boesen, M., jun. 2021, I: European Journal of Radiology. 139, s. 1-8 8 s., 109725.
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review
Purpose: Purpose of this study was to investigate Dual-energy CT (DECT) derived virtual non-calcium (VNCa) values for absolute quantification of the bone marrow composition in the wrist. Materials and Methods: We prospectively included consecutive adult participants and examined their wrists with DECT. Ranges of VNCa and calcium values were measured in the carpal bones, radius and ulna using a semi-automatic method. Bones with bone marrow edema, assessed by two blinded radiologists, were excluded. After determining optimum parameters for the three-material decomposition, the influence of calcium values, age and sex on VNCa values was assessed using multiple linear regression. Results: 41 participants (Median age 53 years, range 20 years – 88 years, 51 % men) were enrolled and 399 bones assessed. At participant level mean VNCa values were -143 HU (SD 14 HU) using the current parameters for three-material decomposition and -104HU (SD 11 HU) with optimized parameters. There was a strong and significant influence of calcium values on VNCa values with the current parameters (p < 0.001, -0.137 HU
[VNCa] / HU
[Calcium]). With optimized parameters the calcium values and sex were not statistically significant predictors of VNCa values. Age was a significant, but clinically negligible, predictor (p = 0.03, -0.225 HU / year). Conclusions: After optimizing three-material decomposition parameters, calcium values, age and sex do not substantially influence virtual non-calcium values, and DECT may therefore be used for absolute quantification of the bone marrow composition - alleviating the need for reference bones or groups.
Originalsprog | Engelsk |
---|---|
Artikelnummer | 109725 |
Tidsskrift | European Journal of Radiology |
Vol/bind | 139 |
Sider (fra-til) | 1-8 |
Antal sider | 8 |
ISSN | 0720-048X |
DOI | |
Status | Udgivet - jun. 2021 |
Bibliografisk note
Copyright © 2021 The Author(s). Published by Elsevier B.V. All rights reserved.