@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",
note = "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 ; Conference date: 14-09-2014 Through 14-09-2014",
}