Quantitative analysis of metal artifact reduction in total hip arthroplasty using virtual monochromatic imaging and orthopedic metal artifact reduction, a phantom study
Abstract Objective To quantify metal artifact reduction using 130 keV virtual monochromatic imaging (VMI) with and without orthopedic metal artifact reduction (O-MAR) in total hip arthroplasty. Methods Conventional polychromatic images and 130 keV VMI of a phantom with pellets representing bone with...
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2021
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oai:doaj.org-article:2415b6e3534e4a7ba272e78b3795829a2021-11-28T12:08:46ZQuantitative analysis of metal artifact reduction in total hip arthroplasty using virtual monochromatic imaging and orthopedic metal artifact reduction, a phantom study10.1186/s13244-021-01111-51869-4101https://doaj.org/article/2415b6e3534e4a7ba272e78b3795829a2021-11-01T00:00:00Zhttps://doi.org/10.1186/s13244-021-01111-5https://doaj.org/toc/1869-4101Abstract Objective To quantify metal artifact reduction using 130 keV virtual monochromatic imaging (VMI) with and without orthopedic metal artifact reduction (O-MAR) in total hip arthroplasty. Methods Conventional polychromatic images and 130 keV VMI of a phantom with pellets representing bone with unilateral or bilateral prostheses were reconstructed with and without O-MAR on a dual-layer CT. Pellets were categorized as unaffected, mildly affected and severely affected. Results When 130 keV VMI with O-MAR was compared to conventional imaging with O-MAR, a relative metal artifact reduction in CT values, contrast-to-noise (CNR), signal-to-noise (SNR) and noise in mildly affected pellets (67%, 74%, 48%, 68%, respectively; p < 0.05) was observed but no significant relative metal artifact reduction in severely affected pellets. Comparison between 130 keV VMI without O-MAR and conventional imaging with O-MAR showed relative metal artifact reduction in CT values, CNR, SNR and noise in mildly affected pellets (92%, 72%, 38%, 51%, respectively; p < 0.05) but negative relative metal artifact reduction in CT values and noise in severely affected pellets (− 331% and -223%, respectively; p < 0.05), indicating aggravation of metal artifacts. Conclusion Overall, VMI of 130 keV with O-MAR provided the strongest metal artifact reduction.Mark SellesVera H. StuivenbergRuud H. H. WellenbergLoes van de RietIngrid M. NijholtJochen A. C. van OschRobbert W. van HamersveltTim LeinerMartijn F. BoomsmaSpringerOpenarticleArthroplastyReplacementHipCTDual energyMedical physics. Medical radiology. Nuclear medicineR895-920ENInsights into Imaging, Vol 12, Iss 1, Pp 1-10 (2021) |
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DOAJ |
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EN |
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Arthroplasty Replacement Hip CT Dual energy Medical physics. Medical radiology. Nuclear medicine R895-920 |
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Arthroplasty Replacement Hip CT Dual energy Medical physics. Medical radiology. Nuclear medicine R895-920 Mark Selles Vera H. Stuivenberg Ruud H. H. Wellenberg Loes van de Riet Ingrid M. Nijholt Jochen A. C. van Osch Robbert W. van Hamersvelt Tim Leiner Martijn F. Boomsma Quantitative analysis of metal artifact reduction in total hip arthroplasty using virtual monochromatic imaging and orthopedic metal artifact reduction, a phantom study |
description |
Abstract Objective To quantify metal artifact reduction using 130 keV virtual monochromatic imaging (VMI) with and without orthopedic metal artifact reduction (O-MAR) in total hip arthroplasty. Methods Conventional polychromatic images and 130 keV VMI of a phantom with pellets representing bone with unilateral or bilateral prostheses were reconstructed with and without O-MAR on a dual-layer CT. Pellets were categorized as unaffected, mildly affected and severely affected. Results When 130 keV VMI with O-MAR was compared to conventional imaging with O-MAR, a relative metal artifact reduction in CT values, contrast-to-noise (CNR), signal-to-noise (SNR) and noise in mildly affected pellets (67%, 74%, 48%, 68%, respectively; p < 0.05) was observed but no significant relative metal artifact reduction in severely affected pellets. Comparison between 130 keV VMI without O-MAR and conventional imaging with O-MAR showed relative metal artifact reduction in CT values, CNR, SNR and noise in mildly affected pellets (92%, 72%, 38%, 51%, respectively; p < 0.05) but negative relative metal artifact reduction in CT values and noise in severely affected pellets (− 331% and -223%, respectively; p < 0.05), indicating aggravation of metal artifacts. Conclusion Overall, VMI of 130 keV with O-MAR provided the strongest metal artifact reduction. |
format |
article |
author |
Mark Selles Vera H. Stuivenberg Ruud H. H. Wellenberg Loes van de Riet Ingrid M. Nijholt Jochen A. C. van Osch Robbert W. van Hamersvelt Tim Leiner Martijn F. Boomsma |
author_facet |
Mark Selles Vera H. Stuivenberg Ruud H. H. Wellenberg Loes van de Riet Ingrid M. Nijholt Jochen A. C. van Osch Robbert W. van Hamersvelt Tim Leiner Martijn F. Boomsma |
author_sort |
Mark Selles |
title |
Quantitative analysis of metal artifact reduction in total hip arthroplasty using virtual monochromatic imaging and orthopedic metal artifact reduction, a phantom study |
title_short |
Quantitative analysis of metal artifact reduction in total hip arthroplasty using virtual monochromatic imaging and orthopedic metal artifact reduction, a phantom study |
title_full |
Quantitative analysis of metal artifact reduction in total hip arthroplasty using virtual monochromatic imaging and orthopedic metal artifact reduction, a phantom study |
title_fullStr |
Quantitative analysis of metal artifact reduction in total hip arthroplasty using virtual monochromatic imaging and orthopedic metal artifact reduction, a phantom study |
title_full_unstemmed |
Quantitative analysis of metal artifact reduction in total hip arthroplasty using virtual monochromatic imaging and orthopedic metal artifact reduction, a phantom study |
title_sort |
quantitative analysis of metal artifact reduction in total hip arthroplasty using virtual monochromatic imaging and orthopedic metal artifact reduction, a phantom study |
publisher |
SpringerOpen |
publishDate |
2021 |
url |
https://doaj.org/article/2415b6e3534e4a7ba272e78b3795829a |
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