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

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

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 languageEnglish
Title of host publicationAbdominal Imaging: Computational and Clinical Applications - 6th International Workshop, ABDI 2014 held in conjunction with MICCAI 2014
PublisherSpringer Verlag
Pages159-168
Number of pages10
Volume8676
ISBN (Print)9783319136912
DOIs
Publication statusPublished - 2014
Event6th 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 2014Sep 14 2014

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume8676
ISSN (Print)03029743
ISSN (Electronic)16113349

Other

Other6th 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
CountryUnited States
CityCambridge
Period9/14/149/14/14

Fingerprint

Dose
Enhancement
Energy
Iodine
Image processing
Tagging
Tissue
Computer-aided Detection
Soft Tissue
Differentiate
Image Processing
Fold
Adjacent
Evaluate

Keywords

  • CT colonography
  • Dual-energy CT
  • Pseudo-enhancement
  • Virtual colonoscopy

ASJC Scopus subject areas

  • Computer Science(all)
  • Theoretical Computer Science

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 proceedingConference 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)).
@inproceedings{cf6e23f33ba8431bad6028a613b4d225,
title = "Information-preserving pseudo-enhancement correction for non-cathartic low-dose dual-energy CT colonography",
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.",
keywords = "CT colonography, Dual-energy CT, Pseudo-enhancement, Virtual colonoscopy",
author = "N{\"a}ppi, {Janne J.} and Rie Tachibana and Daniele Regge and Hiroyuki Yoshida",
year = "2014",
doi = "10.1007/978-3-319-13692-9_15",
language = "English",
isbn = "9783319136912",
volume = "8676",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer Verlag",
pages = "159--168",
booktitle = "Abdominal Imaging: Computational and Clinical Applications - 6th International Workshop, ABDI 2014 held in conjunction with MICCAI 2014",

}

TY - GEN

T1 - Information-preserving pseudo-enhancement correction for non-cathartic low-dose dual-energy CT colonography

AU - Näppi, Janne J.

AU - Tachibana, Rie

AU - Regge, Daniele

AU - Yoshida, Hiroyuki

PY - 2014

Y1 - 2014

N2 - 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.

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.

KW - CT colonography

KW - Dual-energy CT

KW - Pseudo-enhancement

KW - Virtual colonoscopy

UR - http://www.scopus.com/inward/record.url?scp=84927594550&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84927594550&partnerID=8YFLogxK

U2 - 10.1007/978-3-319-13692-9_15

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

M3 - Conference contribution

SN - 9783319136912

VL - 8676

T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

SP - 159

EP - 168

BT - Abdominal Imaging: Computational and Clinical Applications - 6th International Workshop, ABDI 2014 held in conjunction with MICCAI 2014

PB - Springer Verlag

ER -