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Erschienen in: Archives of Osteoporosis 1/2020

01.12.2020 | Original Article

Low-dose and sparse sampling MDCT-based femoral bone strength prediction using finite element analysis

verfasst von: Nithin Manohar Rayudu, D. Praveen Anitha, Kai Mei, Florian Zoffl, Felix K. Kopp, Nico Sollmann, Maximilian T. Löffler, Jan S. Kirschke, Peter B. Noël, Karupppasamy Subburaj, Thomas Baum

Erschienen in: Archives of Osteoporosis | Ausgabe 1/2020

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Abstract

Summary

This study aims to evaluate the impact of dose reduction through tube current and sparse sampling on multi-detector computed tomography (MDCT)-based femoral bone strength prediction using finite element (FE) analysis. FE-predicted femoral failure load obtained from MDCT scan data was not significantly affected by 50% dose reductions through sparse sampling. Further decrease in dose through sparse sampling (25% of original projections) and virtually reduced tube current (50% and 25% of the original dose) showed significant effects on the FE-predicted failure load results.

Purpose

To investigate the effect of virtually reduced tube current and sparse sampling on multi-detector computed tomography (MDCT)-based femoral bone strength prediction using finite element (FE) analysis.

Methods

Routine MDCT data covering the proximal femur of 21 subjects (17 males; 4 females; mean age, 71.0 ± 8.8 years) without any bone diseases aside from osteoporosis were included in this study. Fifty percent and 75% dose reductions were achieved by virtually reducing tube current and by applying a sparse sampling strategy from the raw image data. Images were then reconstructed with a statistically iterative reconstruction algorithm. FE analysis was performed on all reconstructed images and the failure load was calculated. The root mean square coefficient of variation (RMSCV) and coefficient of correlation (R2) were calculated to determine the variation in the FE-predicted failure load data for dose reductions, using original-dose MDCT scan as the standard of reference.

Results

Fifty percent dose reduction through sparse sampling showed lower RMSCV and higher correlations when compared with virtually reduced tube current method (RMSCV = 5.70%, R2 = 0.96 vs. RMSCV = 20.78%, R2 = 0.79). Seventy-five percent dose reduction achieved through both methods (RMSCV = 22.38%, R2 = 0.80 for sparse sampling; RMSCV = 24.58%, R2 = 0.73 for reduced tube current) could not predict the failure load accurately.

Conclusion

Our simulations indicate that up to 50% reduction in radiation dose through sparse sampling can be used for FE-based prediction of femoral failure load. Sparse-sampled MDCT may allow fracture risk prediction and treatment monitoring in osteoporosis with less radiation exposure in the future.
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Literatur
17.
Zurück zum Zitat Wang X, Sanyal A, Cawthon PM, Palermo L, Jekir M, Christensen J, Ensrud KE, Cummings SR, Orwoll E, Black DM, Osteoporotic Fractures in Men (MrOS) Research Group, Keaveny TM (2012) Prediction of new clinical vertebral fractures in elderly men using finite element analysis of CT scans. J Bone Miner Res 27:808–816CrossRef Wang X, Sanyal A, Cawthon PM, Palermo L, Jekir M, Christensen J, Ensrud KE, Cummings SR, Orwoll E, Black DM, Osteoporotic Fractures in Men (MrOS) Research Group, Keaveny TM (2012) Prediction of new clinical vertebral fractures in elderly men using finite element analysis of CT scans. J Bone Miner Res 27:808–816CrossRef
26.
Zurück zum Zitat Mei K, Kopp FK, Bippus R, Köhler T, Schwaiger BJ, Gersing AS, Fehringer A, Sauter A, Münzel D, Pfeiffer F, Rummeny EJ, Kirschke JS, Noël PB, Baum T (2017) Is multidetector CT-based bone mineral density and quantitative bone microstructure assessment at the spine still feasible using ultra-low tube current and sparse sampling? Eur Radiol 27:5267–5271. https://doi.org/10.1007/s00330-017-4904-yCrossRef Mei K, Kopp FK, Bippus R, Köhler T, Schwaiger BJ, Gersing AS, Fehringer A, Sauter A, Münzel D, Pfeiffer F, Rummeny EJ, Kirschke JS, Noël PB, Baum T (2017) Is multidetector CT-based bone mineral density and quantitative bone microstructure assessment at the spine still feasible using ultra-low tube current and sparse sampling? Eur Radiol 27:5267–5271. https://​doi.​org/​10.​1007/​s00330-017-4904-yCrossRef
28.
Zurück zum Zitat Fessler J (2010) Statistical image reconstruction methods for transmission tomography. In: Handbook of medical imaging, Volume 2. Medical Image Processing and Analysis. pp 1–70 Fessler J (2010) Statistical image reconstruction methods for transmission tomography. In: Handbook of medical imaging, Volume 2. Medical Image Processing and Analysis. pp 1–70
32.
Zurück zum Zitat Anitha D, Subburaj K, Kopp FK, Mei K, Foehr P, Burgkart R, Sollmann N, Maegerlein C, Kirschke JS, Noel PB, Baum T (2019) Effect of statistically iterative image reconstruction on vertebral bone strength prediction using bone mineral density and finite element modeling: a preliminary study. J Comput Assist Tomogr 43:61–65. https://doi.org/10.1097/RCT.0000000000000788CrossRefPubMed Anitha D, Subburaj K, Kopp FK, Mei K, Foehr P, Burgkart R, Sollmann N, Maegerlein C, Kirschke JS, Noel PB, Baum T (2019) Effect of statistically iterative image reconstruction on vertebral bone strength prediction using bone mineral density and finite element modeling: a preliminary study. J Comput Assist Tomogr 43:61–65. https://​doi.​org/​10.​1097/​RCT.​0000000000000788​CrossRefPubMed
40.
Zurück zum Zitat Wiedmann U, Neculaes VB, Harrison D et al (2014) X-ray pulsing methods for reduced-dose computed tomography in PET/CT attenuation correction. In: Medical imaging 2014: physics of medical imaging. SPIE, San Diego, p 90332Z Wiedmann U, Neculaes VB, Harrison D et al (2014) X-ray pulsing methods for reduced-dose computed tomography in PET/CT attenuation correction. In: Medical imaging 2014: physics of medical imaging. SPIE, San Diego, p 90332Z
41.
Zurück zum Zitat Park S, Gu L, Rivas-Davila J (2019) A compact 45 V-to-54 kV modular DC-DC converter. In: 2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019. p 18851928 Park S, Gu L, Rivas-Davila J (2019) A compact 45 V-to-54 kV modular DC-DC converter. In: 2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019. p 18851928
44.
Zurück zum Zitat Taylor WR, Roland E, Ploeg H, Hertig D, Klabunde R, Warner MD, Hobatho MC, Rakotomanana L, Clift SE (2002) Determination of orthotropic bone elastic constants using FEA and modal analysis. J Biomech 35:767–773CrossRef Taylor WR, Roland E, Ploeg H, Hertig D, Klabunde R, Warner MD, Hobatho MC, Rakotomanana L, Clift SE (2002) Determination of orthotropic bone elastic constants using FEA and modal analysis. J Biomech 35:767–773CrossRef
45.
Zurück zum Zitat Keyak JH, Lee IY, HBS (1994) Correlations between orthogonal mechanical properties and density of trabecular bone: use of different densitometric measures. J Biomed Mater Res 28:1329–1336CrossRef Keyak JH, Lee IY, HBS (1994) Correlations between orthogonal mechanical properties and density of trabecular bone: use of different densitometric measures. J Biomed Mater Res 28:1329–1336CrossRef
Metadaten
Titel
Low-dose and sparse sampling MDCT-based femoral bone strength prediction using finite element analysis
verfasst von
Nithin Manohar Rayudu
D. Praveen Anitha
Kai Mei
Florian Zoffl
Felix K. Kopp
Nico Sollmann
Maximilian T. Löffler
Jan S. Kirschke
Peter B. Noël
Karupppasamy Subburaj
Thomas Baum
Publikationsdatum
01.12.2020
Verlag
Springer London
Erschienen in
Archives of Osteoporosis / Ausgabe 1/2020
Print ISSN: 1862-3522
Elektronische ISSN: 1862-3514
DOI
https://doi.org/10.1007/s11657-020-0708-9

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