Precision of determining bone pose and marker position in the foot and lower leg from computed tomography scans: How low can we go in radiation dose?

W. Schallig; J. C. van den Noort; R. P. Kleipool; J. G.G. Dobbe; M. M. van der Krogt; J. Harlaar; M. Maas; G. J. Streekstra

doi:10.1016/j.medengphy.2019.05.004

Precision of determining bone pose and marker position in the foot and lower leg from computed tomography scans: How low can we go in radiation dose?

W. Schallig^*, J. C. van den Noort, R. P. Kleipool, J. G.G. Dobbe, M. M. van der Krogt, J. Harlaar, M. Maas, G. J. Streekstra

^*Corresponding author for this work

Biomechatronics & Human-Machine Control

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Abstract

Computed tomography (CT) imaging can be used to determine bone pose, sometimes combined with skin-mounted markers. For this specific application, a lower radiation dose than the conventional clinical dose might suffice. This study aims to determine how lowering the radiation dose of a CT-scan of the ankle and foot affects the precision of detecting bone pose and marker position. Radiation dose is proportional to tube charge. Hence, an adult cadaveric leg was scanned 10 times at four different tube charges (150, 75, 50 and 20 mAs) with a Philips Brilliance 64 CT scanner. Precision of detecting bone and marker position at 50 mAs was not significantly different from 75 mAs and from the clinically used 150 mAs, but higher than 20 mAs. Furthermore, no differences of the precision in detecting bone orientation were found. These results indicate that the radiation dose can be reduced by a factor 3 compared to the clinically usual radiation dose, without affecting the precision of detecting bone pose and marker position in the foot and ankle.

Original language	English
Pages (from-to)	147-152
Journal	Medical Engineering and Physics
Volume	69
DOIs	https://doi.org/10.1016/j.medengphy.2019.05.004
Publication status	Published - 2019

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care

Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Biomechanics
Computed tomography
Dose reduction
Foot
Movement analysis
Registration
Segmentation
Skin-mounted markers

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10.1016/j.medengphy.2019.05.004

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Schallig, W., van den Noort, J. C., Kleipool, R. P., Dobbe, J. G. G., van der Krogt, M. M., Harlaar, J., Maas, M., & Streekstra, G. J. (2019). Precision of determining bone pose and marker position in the foot and lower leg from computed tomography scans: How low can we go in radiation dose? Medical Engineering and Physics, 69, 147-152. https://doi.org/10.1016/j.medengphy.2019.05.004

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title = "Precision of determining bone pose and marker position in the foot and lower leg from computed tomography scans: How low can we go in radiation dose?",

abstract = "Computed tomography (CT) imaging can be used to determine bone pose, sometimes combined with skin-mounted markers. For this specific application, a lower radiation dose than the conventional clinical dose might suffice. This study aims to determine how lowering the radiation dose of a CT-scan of the ankle and foot affects the precision of detecting bone pose and marker position. Radiation dose is proportional to tube charge. Hence, an adult cadaveric leg was scanned 10 times at four different tube charges (150, 75, 50 and 20 mAs) with a Philips Brilliance 64 CT scanner. Precision of detecting bone and marker position at 50 mAs was not significantly different from 75 mAs and from the clinically used 150 mAs, but higher than 20 mAs. Furthermore, no differences of the precision in detecting bone orientation were found. These results indicate that the radiation dose can be reduced by a factor 3 compared to the clinically usual radiation dose, without affecting the precision of detecting bone pose and marker position in the foot and ankle.",

keywords = "Biomechanics, Computed tomography, Dose reduction, Foot, Movement analysis, Registration, Segmentation, Skin-mounted markers",

author = "W. Schallig and {van den Noort}, {J. C.} and Kleipool, {R. P.} and Dobbe, {J. G.G.} and {van der Krogt}, {M. M.} and J. Harlaar and M. Maas and Streekstra, {G. J.}",

note = "Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.",

year = "2019",

doi = "10.1016/j.medengphy.2019.05.004",

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Schallig, W, van den Noort, JC, Kleipool, RP, Dobbe, JGG, van der Krogt, MM, Harlaar, J, Maas, M & Streekstra, GJ 2019, 'Precision of determining bone pose and marker position in the foot and lower leg from computed tomography scans: How low can we go in radiation dose?', Medical Engineering and Physics, vol. 69, pp. 147-152. https://doi.org/10.1016/j.medengphy.2019.05.004

TY - JOUR

T1 - Precision of determining bone pose and marker position in the foot and lower leg from computed tomography scans

T2 - How low can we go in radiation dose?

AU - Schallig, W.

AU - van den Noort, J. C.

AU - Kleipool, R. P.

AU - Dobbe, J. G.G.

AU - van der Krogt, M. M.

AU - Harlaar, J.

AU - Maas, M.

AU - Streekstra, G. J.

N1 - Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2019

Y1 - 2019

N2 - Computed tomography (CT) imaging can be used to determine bone pose, sometimes combined with skin-mounted markers. For this specific application, a lower radiation dose than the conventional clinical dose might suffice. This study aims to determine how lowering the radiation dose of a CT-scan of the ankle and foot affects the precision of detecting bone pose and marker position. Radiation dose is proportional to tube charge. Hence, an adult cadaveric leg was scanned 10 times at four different tube charges (150, 75, 50 and 20 mAs) with a Philips Brilliance 64 CT scanner. Precision of detecting bone and marker position at 50 mAs was not significantly different from 75 mAs and from the clinically used 150 mAs, but higher than 20 mAs. Furthermore, no differences of the precision in detecting bone orientation were found. These results indicate that the radiation dose can be reduced by a factor 3 compared to the clinically usual radiation dose, without affecting the precision of detecting bone pose and marker position in the foot and ankle.

AB - Computed tomography (CT) imaging can be used to determine bone pose, sometimes combined with skin-mounted markers. For this specific application, a lower radiation dose than the conventional clinical dose might suffice. This study aims to determine how lowering the radiation dose of a CT-scan of the ankle and foot affects the precision of detecting bone pose and marker position. Radiation dose is proportional to tube charge. Hence, an adult cadaveric leg was scanned 10 times at four different tube charges (150, 75, 50 and 20 mAs) with a Philips Brilliance 64 CT scanner. Precision of detecting bone and marker position at 50 mAs was not significantly different from 75 mAs and from the clinically used 150 mAs, but higher than 20 mAs. Furthermore, no differences of the precision in detecting bone orientation were found. These results indicate that the radiation dose can be reduced by a factor 3 compared to the clinically usual radiation dose, without affecting the precision of detecting bone pose and marker position in the foot and ankle.

KW - Biomechanics

KW - Computed tomography

KW - Dose reduction

KW - Foot

KW - Movement analysis

KW - Registration

KW - Segmentation

KW - Skin-mounted markers

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SP - 147

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JO - Medical Engineering and Physics

JF - Medical Engineering and Physics

ER -

Precision of determining bone pose and marker position in the foot and lower leg from computed tomography scans: How low can we go in radiation dose?

Abstract

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Keywords

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