Diagnostic accuracy of color-coded virtual noncalcium reconstructions derived from portal venous phase dual-energy CT in the assessment of lumbar disk herniation.
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| Title: | Diagnostic accuracy of color-coded virtual noncalcium reconstructions derived from portal venous phase dual-energy CT in the assessment of lumbar disk herniation. |
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| Authors: | Koch, Vitali1, Albrecht, Moritz H.1, Gruenewald, Leon D.1, Yel, Ibrahim1, Eichler, Katrin2, Gruber-Rouh, Tatjana2, Hammerstingl, Renate M.2, Burck, Iris2, Wichmann, Julian L.2, Alizadeh, Leona S.2, Vogl, Thomas J.1,2, Lenga, Lukas2, Mader, Christoph2, Martin, Simon S.2, Mazziotti, Silvio3, D'Angelo, Tommaso3, Booz, Christian1 boozchristian@gmail.com |
| Source: | European Radiology. Apr2022, Vol. 32 Issue 4, p2168-2177. 10p. 2 Color Photographs, 1 Diagram, 2 Charts, 1 Graph. |
| Abstract: | Objectives: To investigate the diagnostic accuracy of color-coded contrast-enhanced dual-energy CT virtual noncalcium (VNCa) reconstructions for the assessment of lumbar disk herniation compared to unenhanced VNCa imaging. Methods: A total of 91 patients were retrospectively evaluated (65 years ± 16; 43 women) who had undergone third-generation dual-source dual-energy CT and 3.0-T MRI within an examination interval up to 3 weeks between November 2019 and December 2020. Eight weeks after assessing unenhanced color-coded VNCa reconstructions for the presence and degree of lumbar disk herniation, corresponding contrast-enhanced portal venous phase color-coded VNCa reconstructions were independently analyzed by the same five radiologists. MRI series were additionally analyzed by one highly experienced musculoskeletal radiologist and served as reference standard. Results: MRI depicted 210 herniated lumbar disks in 91 patients. VNCa reconstructions derived from contrast-enhanced CT scans showed similar high overall sensitivity (93% vs 95%), specificity (94% vs 95%), and accuracy (94% vs 95%) for the assessment of lumbar disk herniation compared to unenhanced VNCa images (all p >.05). Interrater agreement in VNCa imaging was excellent for both, unenhanced and contrast-enhanced CT (κ = 0.84 vs κ = 0.86; p >.05). Moreover, ratings for diagnostic confidence, image quality, and noise differed not significantly between unenhanced and contrast-enhanced VNCa series (all p >.05). Conclusions: Color-coded VNCa reconstructions derived from contrast-enhanced dual-energy CT yield similar diagnostic accuracy for the depiction of lumbar disk herniation compared to unenhanced VNCa imaging and therefore may improve opportunistic retrospective lumbar disk herniation assessment, particularly in case of staging CT examinations. Key Points: • Color-coded dual-source dual-energy CT virtual noncalcium (VNCa) reconstructions derived from portal venous phase yield similar high diagnostic accuracy for the assessment of lumbar disk herniation compared to unenhanced VNCa CT series (94% vs 95%) with MRI serving as a standard of reference. • Diagnostic confidence, image quality, and noise levels differ not significantly between unenhanced and contrast-enhanced portal venous phase VNCa dual-energy CT series. • Dual-source dual-energy CT might have the potential to improve opportunistic retrospective lumbar disk herniation assessment in CT examinations performed for other indications through reconstruction of VNCa images. [ABSTRACT FROM AUTHOR] |
| Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Items | – Name: Title Label: Title Group: Ti Data: Diagnostic accuracy of color-coded virtual noncalcium reconstructions derived from portal venous phase dual-energy CT in the assessment of lumbar disk herniation. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Koch%2C+Vitali%22">Koch, Vitali</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Albrecht%2C+Moritz+H%2E%22">Albrecht, Moritz H.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gruenewald%2C+Leon+D%2E%22">Gruenewald, Leon D.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yel%2C+Ibrahim%22">Yel, Ibrahim</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Eichler%2C+Katrin%22">Eichler, Katrin</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Gruber-Rouh%2C+Tatjana%22">Gruber-Rouh, Tatjana</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Hammerstingl%2C+Renate+M%2E%22">Hammerstingl, Renate M.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Burck%2C+Iris%22">Burck, Iris</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Wichmann%2C+Julian+L%2E%22">Wichmann, Julian L.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Alizadeh%2C+Leona+S%2E%22">Alizadeh, Leona S.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Vogl%2C+Thomas+J%2E%22">Vogl, Thomas J.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Lenga%2C+Lukas%22">Lenga, Lukas</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Mader%2C+Christoph%22">Mader, Christoph</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Martin%2C+Simon+S%2E%22">Martin, Simon S.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Mazziotti%2C+Silvio%22">Mazziotti, Silvio</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22D'Angelo%2C+Tommaso%22">D'Angelo, Tommaso</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Booz%2C+Christian%22">Booz, Christian</searchLink><relatesTo>1</relatesTo><i> boozchristian@gmail.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Radiology%22">European Radiology</searchLink>. Apr2022, Vol. 32 Issue 4, p2168-2177. 10p. 2 Color Photographs, 1 Diagram, 2 Charts, 1 Graph. – Name: Abstract Label: Abstract Group: Ab Data: Objectives: To investigate the diagnostic accuracy of color-coded contrast-enhanced dual-energy CT virtual noncalcium (VNCa) reconstructions for the assessment of lumbar disk herniation compared to unenhanced VNCa imaging. Methods: A total of 91 patients were retrospectively evaluated (65 years ± 16; 43 women) who had undergone third-generation dual-source dual-energy CT and 3.0-T MRI within an examination interval up to 3 weeks between November 2019 and December 2020. Eight weeks after assessing unenhanced color-coded VNCa reconstructions for the presence and degree of lumbar disk herniation, corresponding contrast-enhanced portal venous phase color-coded VNCa reconstructions were independently analyzed by the same five radiologists. MRI series were additionally analyzed by one highly experienced musculoskeletal radiologist and served as reference standard. Results: MRI depicted 210 herniated lumbar disks in 91 patients. VNCa reconstructions derived from contrast-enhanced CT scans showed similar high overall sensitivity (93% vs 95%), specificity (94% vs 95%), and accuracy (94% vs 95%) for the assessment of lumbar disk herniation compared to unenhanced VNCa images (all p >.05). Interrater agreement in VNCa imaging was excellent for both, unenhanced and contrast-enhanced CT (κ = 0.84 vs κ = 0.86; p >.05). Moreover, ratings for diagnostic confidence, image quality, and noise differed not significantly between unenhanced and contrast-enhanced VNCa series (all p >.05). Conclusions: Color-coded VNCa reconstructions derived from contrast-enhanced dual-energy CT yield similar diagnostic accuracy for the depiction of lumbar disk herniation compared to unenhanced VNCa imaging and therefore may improve opportunistic retrospective lumbar disk herniation assessment, particularly in case of staging CT examinations. Key Points: • Color-coded dual-source dual-energy CT virtual noncalcium (VNCa) reconstructions derived from portal venous phase yield similar high diagnostic accuracy for the assessment of lumbar disk herniation compared to unenhanced VNCa CT series (94% vs 95%) with MRI serving as a standard of reference. • Diagnostic confidence, image quality, and noise levels differ not significantly between unenhanced and contrast-enhanced portal venous phase VNCa dual-energy CT series. • Dual-source dual-energy CT might have the potential to improve opportunistic retrospective lumbar disk herniation assessment in CT examinations performed for other indications through reconstruction of VNCa images. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00330-021-08354-2 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 2168 Titles: – TitleFull: Diagnostic accuracy of color-coded virtual noncalcium reconstructions derived from portal venous phase dual-energy CT in the assessment of lumbar disk herniation. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Koch, Vitali – PersonEntity: Name: NameFull: Albrecht, Moritz H. – PersonEntity: Name: NameFull: Gruenewald, Leon D. – PersonEntity: Name: NameFull: Yel, Ibrahim – PersonEntity: Name: NameFull: Eichler, Katrin – PersonEntity: Name: NameFull: Gruber-Rouh, Tatjana – PersonEntity: Name: NameFull: Hammerstingl, Renate M. – PersonEntity: Name: NameFull: Burck, Iris – PersonEntity: Name: NameFull: Wichmann, Julian L. – PersonEntity: Name: NameFull: Alizadeh, Leona S. – PersonEntity: Name: NameFull: Vogl, Thomas J. – PersonEntity: Name: NameFull: Lenga, Lukas – PersonEntity: Name: NameFull: Mader, Christoph – PersonEntity: Name: NameFull: Martin, Simon S. – PersonEntity: Name: NameFull: Mazziotti, Silvio – PersonEntity: Name: NameFull: D'Angelo, Tommaso – PersonEntity: Name: NameFull: Booz, Christian IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2022 Type: published Y: 2022 Identifiers: – Type: issn-print Value: 09387994 Numbering: – Type: volume Value: 32 – Type: issue Value: 4 Titles: – TitleFull: European Radiology Type: main |
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