Non-Rigid Motion Compensation for Breast CT

Mikhail Mikerov*, Koen Michielsen, Nikita Moriakov, Ioannis Sechopoulos

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

The image quality in dynamic contrast-enhanced breast CT is expected to suffer from motion artifacts due to the extended acquisition time involved. We propose an iterative method for compensation of motion artifacts due to non-rigid movement of the breast. The motion vector field is approximated using b-splines on a sparse grid and its values are found by minimizing errors in the projection domain. We evaluated the method on an anthropomorphic phantom with realistic motion and visual assessment yielded a clear reduction in motion artifacts. Quantitatively, we observed an increase of the structural similarity from 0.9988 to 0.9995 and a decrease of the normalized root mean squared error from 0.1448 to 0.0932.

Original languageEnglish
Title of host publication2022 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room Temperature Semiconductor Detector Conference (NSS/MIC)
PublisherIEEE
ISBN (Electronic)9781665488723
DOIs
Publication statusPublished - 26 Jan 2024
EventIEEE Nuclear Science Symposium, Medical Imaging Conference, and Room Temperature Semiconductor Detector Conference, IEEE NSS MIC RTSD 2022 - Milano, Italy
Duration: 5 Nov 202212 Nov 2022

Conference

ConferenceIEEE Nuclear Science Symposium, Medical Imaging Conference, and Room Temperature Semiconductor Detector Conference, IEEE NSS MIC RTSD 2022
Abbreviated titleIEEE NSS MIC RTSD 2022
Country/TerritoryItaly
CityMilano
Period5/11/2212/11/22

Keywords

  • n/a OA procedure

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