Information-preserving pseudo-enhancement correction for non-cathartic low-dose dual-energy CT colonography

Janne J. Näppi; Rie Tachibana; Daniele Regge; Hiroyuki Yoshida

doi:10.1007/978-3-319-13692-9_15

Information-preserving pseudo-enhancement correction for non-cathartic low-dose dual-energy CT colonography

Janne J. Näppi, Rie Tachibana, Daniele Regge, Hiroyuki Yoshida

Istituto Oncologico Candiolo

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In CT colonography (CTC), orally administered positivecontrast fecal-tagging agents can cause artificial elevation of the observed radiodensity of adjacent soft tissue. Such pseudo-enhancement makes it challenging to differentiate polyps and folds reliably from tagged materials, and it is also present in dual-energy CTC (DE-CTC).We developed a method that corrects for pseudo-enhancement on DE-CTC images without distorting the dual-energy information contained in the data. A pilot study was performed to evaluate the effect of the method visually and quantitatively by use of clinical non-cathartic low-dose DE-CTC data from 10 patients including 13 polyps covered partially or completely by iodine-based fecal tagging. The results indicate that the proposed method can be used to reduce the pseudo-enhancement distortion of DE-CTC images without losing material-specific dual-energy information. The method has potential application in improving the accuracy of automated image-processing applications, such as computer-aided detection and virtual bowel cleansing in CTC.

Original language	English
Title of host publication	Abdominal Imaging: Computational and Clinical Applications - 6th International Workshop, ABDI 2014 held in conjunction with MICCAI 2014
Publisher	Springer Verlag
Pages	159-168
Number of pages	10
Volume	8676
ISBN (Print)	9783319136912
DOIs	https://doi.org/10.1007/978-3-319-13692-9_15
Publication status	Published - 2014
Event	6th International Workshop on Abdominal Imaging: Computational and Clinical Applications, ABDI 2014 held in conjunction with 17th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2014 - Cambridge, United States Duration: Sep 14 2014 → Sep 14 2014

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	8676
ISSN (Print)	03029743
ISSN (Electronic)	16113349

Other

Other	6th International Workshop on Abdominal Imaging: Computational and Clinical Applications, ABDI 2014 held in conjunction with 17th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2014
Country/Territory	United States
City	Cambridge
Period	9/14/14 → 9/14/14

Keywords

CT colonography
Dual-energy CT
Pseudo-enhancement
Virtual colonoscopy

ASJC Scopus subject areas

Computer Science(all)
Theoretical Computer Science

Access to Document

10.1007/978-3-319-13692-9_15

Cite this

Näppi, J. J., Tachibana, R., Regge, D., & Yoshida, H. (2014). Information-preserving pseudo-enhancement correction for non-cathartic low-dose dual-energy CT colonography. In Abdominal Imaging: Computational and Clinical Applications - 6th International Workshop, ABDI 2014 held in conjunction with MICCAI 2014 (Vol. 8676, pp. 159-168). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 8676). Springer Verlag. https://doi.org/10.1007/978-3-319-13692-9_15

Information-preserving pseudo-enhancement correction for non-cathartic low-dose dual-energy CT colonography. / Näppi, Janne J.; Tachibana, Rie; Regge, Daniele; Yoshida, Hiroyuki.

Abdominal Imaging: Computational and Clinical Applications - 6th International Workshop, ABDI 2014 held in conjunction with MICCAI 2014. Vol. 8676 Springer Verlag, 2014. p. 159-168 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 8676).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Näppi, JJ, Tachibana, R, Regge, D & Yoshida, H 2014, Information-preserving pseudo-enhancement correction for non-cathartic low-dose dual-energy CT colonography. in Abdominal Imaging: Computational and Clinical Applications - 6th International Workshop, ABDI 2014 held in conjunction with MICCAI 2014. vol. 8676, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 8676, Springer Verlag, pp. 159-168, 6th International Workshop on Abdominal Imaging: Computational and Clinical Applications, ABDI 2014 held in conjunction with 17th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2014, Cambridge, United States, 9/14/14. https://doi.org/10.1007/978-3-319-13692-9_15

Näppi JJ, Tachibana R, Regge D, Yoshida H. Information-preserving pseudo-enhancement correction for non-cathartic low-dose dual-energy CT colonography. In Abdominal Imaging: Computational and Clinical Applications - 6th International Workshop, ABDI 2014 held in conjunction with MICCAI 2014. Vol. 8676. Springer Verlag. 2014. p. 159-168. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). https://doi.org/10.1007/978-3-319-13692-9_15

Näppi, Janne J. ; Tachibana, Rie ; Regge, Daniele ; Yoshida, Hiroyuki. / Information-preserving pseudo-enhancement correction for non-cathartic low-dose dual-energy CT colonography. Abdominal Imaging: Computational and Clinical Applications - 6th International Workshop, ABDI 2014 held in conjunction with MICCAI 2014. Vol. 8676 Springer Verlag, 2014. pp. 159-168 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).

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abstract = "In CT colonography (CTC), orally administered positivecontrast fecal-tagging agents can cause artificial elevation of the observed radiodensity of adjacent soft tissue. Such pseudo-enhancement makes it challenging to differentiate polyps and folds reliably from tagged materials, and it is also present in dual-energy CTC (DE-CTC).We developed a method that corrects for pseudo-enhancement on DE-CTC images without distorting the dual-energy information contained in the data. A pilot study was performed to evaluate the effect of the method visually and quantitatively by use of clinical non-cathartic low-dose DE-CTC data from 10 patients including 13 polyps covered partially or completely by iodine-based fecal tagging. The results indicate that the proposed method can be used to reduce the pseudo-enhancement distortion of DE-CTC images without losing material-specific dual-energy information. The method has potential application in improving the accuracy of automated image-processing applications, such as computer-aided detection and virtual bowel cleansing in CTC.",

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AU - Yoshida, Hiroyuki

PY - 2014

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AB - In CT colonography (CTC), orally administered positivecontrast fecal-tagging agents can cause artificial elevation of the observed radiodensity of adjacent soft tissue. Such pseudo-enhancement makes it challenging to differentiate polyps and folds reliably from tagged materials, and it is also present in dual-energy CTC (DE-CTC).We developed a method that corrects for pseudo-enhancement on DE-CTC images without distorting the dual-energy information contained in the data. A pilot study was performed to evaluate the effect of the method visually and quantitatively by use of clinical non-cathartic low-dose DE-CTC data from 10 patients including 13 polyps covered partially or completely by iodine-based fecal tagging. The results indicate that the proposed method can be used to reduce the pseudo-enhancement distortion of DE-CTC images without losing material-specific dual-energy information. The method has potential application in improving the accuracy of automated image-processing applications, such as computer-aided detection and virtual bowel cleansing in CTC.

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Information-preserving pseudo-enhancement correction for non-cathartic low-dose dual-energy CT colonography

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