Motion artifacts in kidney stone imaging using dual-energy CT. A phantom study comparing single-source and dual-source scanners

El Sayed Ibrahim, Robert Pooley, Joseph Cernigliaro, Mellena Bridges, James Williams, William Haley

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

Abstract

Computed tomography (CT) has been established as the method of choice for imaging kidney stones with high sensitivity and accuracy. Further, dual-energy CT (DECT) showed the capability of differentiating uric-acid (UA) from non-UA stones with 90-100% accuracy. DECT depends on acquiring two images at different energy levels, from which a material-specific color-coded image is generated. With the invention of dual-source (DS) scanners, both low- and high-energy images are acquired simultaneously. However, DECT can also be performed by sequential acquisition of both images on single-source (SS) scanners. Although motion artifacts generally result in distorted anatomy and blurring, in stone imaging they may lead to stone misclassification. In this study, we investigate the effects of motion artifacts on stone classification using both SS and DS DECT. The results show that stone misclassification may be significantly higher in SS DECT, especially when multiple stones with different types lie in close proximity.

Original languageEnglish (US)
Title of host publication2015 IEEE 12th International Symposium on Biomedical Imaging, ISBI 2015
PublisherIEEE Computer Society
Pages1159-1162
Number of pages4
ISBN (Electronic)9781479923748
DOIs
StatePublished - Jul 21 2015
Event12th IEEE International Symposium on Biomedical Imaging, ISBI 2015 - Brooklyn, United States
Duration: Apr 16 2015Apr 19 2015

Publication series

NameProceedings - International Symposium on Biomedical Imaging
Volume2015-July
ISSN (Print)1945-7928
ISSN (Electronic)1945-8452

Other

Other12th IEEE International Symposium on Biomedical Imaging, ISBI 2015
CountryUnited States
CityBrooklyn
Period4/16/154/19/15

Keywords

  • Dual-energy computed tomography
  • Kidney stones
  • Motion artifacts
  • Nephrolithiasis

ASJC Scopus subject areas

  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

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    Ibrahim, E. S., Pooley, R., Cernigliaro, J., Bridges, M., Williams, J., & Haley, W. (2015). Motion artifacts in kidney stone imaging using dual-energy CT. A phantom study comparing single-source and dual-source scanners. In 2015 IEEE 12th International Symposium on Biomedical Imaging, ISBI 2015 (pp. 1159-1162). [7164078] (Proceedings - International Symposium on Biomedical Imaging; Vol. 2015-July). IEEE Computer Society. https://doi.org/10.1109/ISBI.2015.7164078