The utility of virtual monochromatic dual-energy computed tomography (DECT) in meniscal imaging : a technical evaluation

2024
journal article
article
dc.abstract.enPurpose: To determine the feasibility of meniscal imaging using virtual monochromatic images obtained through dualenergy computed tomography (DECT) technique, and to determine which keV levels optimise contrast resolution. Material and methods: All DECT exams were performed on a Discovery CT750 HD system from GE Healthcare. Virtual monochromatic images were reconstructed at 40 keV, 73 keV, 106 keV, and 139 keV. Contrast resolution of the medial and lateral menisci using a 5-point Likert scale at each keV level was determined through a consensus agreement by 2 fellowship-trained musculoskeletal radiologists. Friedman's and Wilcoxon signed rank tests were used to compare visualisation scores across different keV levels. Results: Seventeen knee exams from 10 patients met criteria for inclusion in the study. All patients included in the study cohort were male. The median age of patients was 46 years (interquartile range, 35-53 years). Virtual monochromatic images at 40 keV demonstrated highest contrast resolution of the menisci, with a statistically significant difference between contrast resolution scores at 40 keV and 76 keV, Friedman test: p < 0.0001.Conclusions: Meniscal imaging is feasible using DECT virtual monochromatic images at low keV levels. Improved contrast resolution at these specified KeV values could pave the way for further research in this field to determine its role in the future as an alternative option for assessment of the menisci in patients with contraindications to MRI or in the setting of a periarticular ferromagnetic foreign body obscuring the field of view.
dc.contributor.authorAdams, Scott
dc.contributor.authorvan Heerden, Jacques
dc.contributor.authorReis, Jodie
dc.contributor.authorMondal, Prosanta
dc.contributor.authorShepel, Michael
dc.contributor.authorObaid, Haron
dc.date.accessioned2025-08-01T06:34:27Z
dc.date.available2025-08-01T06:34:27Z
dc.date.createdat2025-08-01T06:34:27Zen
dc.date.issued2024
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.additionalBibliogr. s. e327
dc.description.physicale324-e327
dc.description.versionostateczna wersja wydawcy
dc.description.volume89
dc.identifier.doi10.5114/pjr/187934
dc.identifier.issn1733-134X
dc.identifier.projectDRC AI
dc.identifier.urihttps://ruj.uj.edu.pl/handle/item/558626
dc.languageeng
dc.language.containereng
dc.rightsUdzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa
dc.rights.licenceCC-BY-NC-ND
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl
dc.share.typeotwarte czasopismo
dc.subject.endual-energy CT
dc.subject.enmeniscus
dc.subject.encontrast resolution
dc.subtypeArticle
dc.titleThe utility of virtual monochromatic dual-energy computed tomography (DECT) in meniscal imaging : a technical evaluation
dc.title.journalPolish Journal of Radiology
dc.typeJournalArticle
dspace.entity.typePublicationen
dc.abstract.en
Purpose: To determine the feasibility of meniscal imaging using virtual monochromatic images obtained through dualenergy computed tomography (DECT) technique, and to determine which keV levels optimise contrast resolution. Material and methods: All DECT exams were performed on a Discovery CT750 HD system from GE Healthcare. Virtual monochromatic images were reconstructed at 40 keV, 73 keV, 106 keV, and 139 keV. Contrast resolution of the medial and lateral menisci using a 5-point Likert scale at each keV level was determined through a consensus agreement by 2 fellowship-trained musculoskeletal radiologists. Friedman's and Wilcoxon signed rank tests were used to compare visualisation scores across different keV levels. Results: Seventeen knee exams from 10 patients met criteria for inclusion in the study. All patients included in the study cohort were male. The median age of patients was 46 years (interquartile range, 35-53 years). Virtual monochromatic images at 40 keV demonstrated highest contrast resolution of the menisci, with a statistically significant difference between contrast resolution scores at 40 keV and 76 keV, Friedman test: p < 0.0001.Conclusions: Meniscal imaging is feasible using DECT virtual monochromatic images at low keV levels. Improved contrast resolution at these specified KeV values could pave the way for further research in this field to determine its role in the future as an alternative option for assessment of the menisci in patients with contraindications to MRI or in the setting of a periarticular ferromagnetic foreign body obscuring the field of view.
dc.contributor.author
Adams, Scott
dc.contributor.author
van Heerden, Jacques
dc.contributor.author
Reis, Jodie
dc.contributor.author
Mondal, Prosanta
dc.contributor.author
Shepel, Michael
dc.contributor.author
Obaid, Haron
dc.date.accessioned
2025-08-01T06:34:27Z
dc.date.available
2025-08-01T06:34:27Z
dc.date.createdaten
2025-08-01T06:34:27Z
dc.date.issued
2024
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.additional
Bibliogr. s. e327
dc.description.physical
e324-e327
dc.description.version
ostateczna wersja wydawcy
dc.description.volume
89
dc.identifier.doi
10.5114/pjr/187934
dc.identifier.issn
1733-134X
dc.identifier.project
DRC AI
dc.identifier.uri
https://ruj.uj.edu.pl/handle/item/558626
dc.language
eng
dc.language.container
eng
dc.rights
Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa
dc.rights.licence
CC-BY-NC-ND
dc.rights.uri
http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl
dc.share.type
otwarte czasopismo
dc.subject.en
dual-energy CT
dc.subject.en
meniscus
dc.subject.en
contrast resolution
dc.subtype
Article
dc.title
The utility of virtual monochromatic dual-energy computed tomography (DECT) in meniscal imaging : a technical evaluation
dc.title.journal
Polish Journal of Radiology
dc.type
JournalArticle
dspace.entity.typeen
Publication
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