C-arm distortion correction using patient CT as a fiducial

Gouthami Chintalapani, Russell H. Taylor

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

Abstract

X-ray imaging is an extensively used intra-operative imaging modality because of its low cost and portability. These images have to be corrected for geometric distortion in order to use them for quantitative analysis. Current distortion correction techniques, which use a grid pattern phantom, are not user friendly, for example the phantom interferes with the patient anatomy being imaged. We present a novel method to estimate the c-arm distortion parameters along with the patient pose using patient CT as a fiducial. This method could be very useful in applications such as 3D reconstruction and surgical navigation. In this method, we characterize the c-arm distortion patterns statistically using principal component analysis. The distortion correction method optimizes the distortion parameters by comparing the fluoroscopic images and the projections of the registered patient CT. Our simulation experiments show that the distortion parameters can be recovered up to an average accuracy of 0.5117 mm with a pose error of about 0.1692 mm in translation, 0.2112 deg in rotation.

Original languageEnglish (US)
Title of host publication2007 4th IEEE International Symposium on Biomedical Imaging
Subtitle of host publicationFrom Nano to Macro - Proceedings
Pages1180-1183
Number of pages4
DOIs
StatePublished - Nov 27 2007
Event2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro; ISBI'07 - Arlington, VA, United States
Duration: Apr 12 2007Apr 15 2007

Publication series

Name2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Proceedings

Other

Other2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro; ISBI'07
CountryUnited States
CityArlington, VA
Period4/12/074/15/07

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Medicine(all)

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  • Cite this

    Chintalapani, G., & Taylor, R. H. (2007). C-arm distortion correction using patient CT as a fiducial. In 2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Proceedings (pp. 1180-1183). [4193502] (2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Proceedings). https://doi.org/10.1109/ISBI.2007.357068