Comparison of the performance of conventional and spectral-based tagged stool cleansing algorithms at CT colonography.
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| Title: | Comparison of the performance of conventional and spectral-based tagged stool cleansing algorithms at CT colonography. |
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| Authors: | Grosu, Sergio1,2 sergio.grosu@med.uni-muenchen.de, Wiemker, Rafael3, An, Chansik1, Obmann, Markus M.1,4, Wong, Eddy5, Yee, Judy6, Yeh, Benjamin M.1 |
| Source: | European Radiology. Nov2022, Vol. 32 Issue 11, p7936-7945. 10p. 4 Black and White Photographs, 2 Charts, 1 Graph. |
| Subjects: | Colorectal cancer, Early detection of cancer, Wilcoxon signed-rank test, Computed tomography, Iodine |
| Abstract: | Objectives: To compare the performance of conventional versus spectral-based electronic stool cleansing for iodine-tagged CT colonography (CTC) using a dual-layer spectral detector scanner. Methods: We retrospectively evaluated iodine contrast stool-tagged CTC scans of 30 consecutive patients (mean age: 69 ± 8 years) undergoing colorectal cancer screening obtained on a dual-layer spectral detector CT scanner. One reader identified locations of electronic cleansing artifacts (n = 229) on conventional and spectral cleansed images. Three additional independent readers evaluated these locations using a conventional cleansing algorithm (Intellispace Portal) and two experimental spectral cleansing algorithms (i.e., fully transparent and translucent tagged stool). For each cleansed image set, readers recorded the severity of over- and under-cleansing artifacts on a 5-point Likert scale (0 = none to 4 = severe) and readability compared to uncleansed images. Wilcoxon's signed-rank tests were used to assess artifact severity, type, and readability (worse, unchanged, or better). Results: Compared with conventional cleansing (66% score ≥ 2), the severity of overall cleansing artifacts was lower in transparent (60% score ≥ 2, p = 0.011) and translucent (50% score ≥ 2, p < 0.001) spectral cleansing. Under-cleansing artifact severity was lower in transparent (49% score ≥ 2, p < 0.001) and translucent (39% score ≥ 2, p < 0.001) spectral cleansing compared with conventional cleansing (60% score ≥ 2). Over-cleansing artifact severity was worse in transparent (17% score ≥ 2, p < 0.001) and translucent (14% score ≥ 2, p = 0.023) spectral cleansing compared with conventional cleansing (9% score ≥ 2). Overall readability was significantly improved in transparent (p < 0.001) and translucent (p < 0.001) spectral cleansing compared with conventional cleansing. Conclusions: Spectral cleansing provided more robust electronic stool cleansing of iodine-tagged stool at CTC than conventional cleansing. Key Points: • Spectral-based electronic cleansing of tagged stool at CT colonography provides higher quality images with less perception of artifacts than does conventional cleansing. • Spectral-based electronic cleansing could potentially advance minimally cathartic approach for CT colonography. Further clinical trials are warranted. [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.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 160256623 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Comparison of the performance of conventional and spectral-based tagged stool cleansing algorithms at CT colonography. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Grosu%2C+Sergio%22">Grosu, Sergio</searchLink><relatesTo>1,2</relatesTo><i> sergio.grosu@med.uni-muenchen.de</i><br /><searchLink fieldCode="AR" term="%22Wiemker%2C+Rafael%22">Wiemker, Rafael</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22An%2C+Chansik%22">An, Chansik</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Obmann%2C+Markus+M%2E%22">Obmann, Markus M.</searchLink><relatesTo>1,4</relatesTo><br /><searchLink fieldCode="AR" term="%22Wong%2C+Eddy%22">Wong, Eddy</searchLink><relatesTo>5</relatesTo><br /><searchLink fieldCode="AR" term="%22Yee%2C+Judy%22">Yee, Judy</searchLink><relatesTo>6</relatesTo><br /><searchLink fieldCode="AR" term="%22Yeh%2C+Benjamin+M%2E%22">Yeh, Benjamin M.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Radiology%22">European Radiology</searchLink>. Nov2022, Vol. 32 Issue 11, p7936-7945. 10p. 4 Black and White Photographs, 2 Charts, 1 Graph. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Colorectal+cancer%22">Colorectal cancer</searchLink><br /><searchLink fieldCode="DE" term="%22Early+detection+of+cancer%22">Early detection of cancer</searchLink><br /><searchLink fieldCode="DE" term="%22Wilcoxon+signed-rank+test%22">Wilcoxon signed-rank test</searchLink><br /><searchLink fieldCode="DE" term="%22Computed+tomography%22">Computed tomography</searchLink><br /><searchLink fieldCode="DE" term="%22Iodine%22">Iodine</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Objectives: To compare the performance of conventional versus spectral-based electronic stool cleansing for iodine-tagged CT colonography (CTC) using a dual-layer spectral detector scanner. Methods: We retrospectively evaluated iodine contrast stool-tagged CTC scans of 30 consecutive patients (mean age: 69 ± 8 years) undergoing colorectal cancer screening obtained on a dual-layer spectral detector CT scanner. One reader identified locations of electronic cleansing artifacts (n = 229) on conventional and spectral cleansed images. Three additional independent readers evaluated these locations using a conventional cleansing algorithm (Intellispace Portal) and two experimental spectral cleansing algorithms (i.e., fully transparent and translucent tagged stool). For each cleansed image set, readers recorded the severity of over- and under-cleansing artifacts on a 5-point Likert scale (0 = none to 4 = severe) and readability compared to uncleansed images. Wilcoxon's signed-rank tests were used to assess artifact severity, type, and readability (worse, unchanged, or better). Results: Compared with conventional cleansing (66% score ≥ 2), the severity of overall cleansing artifacts was lower in transparent (60% score ≥ 2, p = 0.011) and translucent (50% score ≥ 2, p < 0.001) spectral cleansing. Under-cleansing artifact severity was lower in transparent (49% score ≥ 2, p < 0.001) and translucent (39% score ≥ 2, p < 0.001) spectral cleansing compared with conventional cleansing (60% score ≥ 2). Over-cleansing artifact severity was worse in transparent (17% score ≥ 2, p < 0.001) and translucent (14% score ≥ 2, p = 0.023) spectral cleansing compared with conventional cleansing (9% score ≥ 2). Overall readability was significantly improved in transparent (p < 0.001) and translucent (p < 0.001) spectral cleansing compared with conventional cleansing. Conclusions: Spectral cleansing provided more robust electronic stool cleansing of iodine-tagged stool at CTC than conventional cleansing. Key Points: • Spectral-based electronic cleansing of tagged stool at CT colonography provides higher quality images with less perception of artifacts than does conventional cleansing. • Spectral-based electronic cleansing could potentially advance minimally cathartic approach for CT colonography. Further clinical trials are warranted. [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/s00330-022-08831-2 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 7936 Subjects: – SubjectFull: Colorectal cancer Type: general – SubjectFull: Early detection of cancer Type: general – SubjectFull: Wilcoxon signed-rank test Type: general – SubjectFull: Computed tomography Type: general – SubjectFull: Iodine Type: general Titles: – TitleFull: Comparison of the performance of conventional and spectral-based tagged stool cleansing algorithms at CT colonography. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Grosu, Sergio – PersonEntity: Name: NameFull: Wiemker, Rafael – PersonEntity: Name: NameFull: An, Chansik – PersonEntity: Name: NameFull: Obmann, Markus M. – PersonEntity: Name: NameFull: Wong, Eddy – PersonEntity: Name: NameFull: Yee, Judy – PersonEntity: Name: NameFull: Yeh, Benjamin M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2022 Type: published Y: 2022 Identifiers: – Type: issn-print Value: 09387994 Numbering: – Type: volume Value: 32 – Type: issue Value: 11 Titles: – TitleFull: European Radiology Type: main |
| ResultId | 1 |
