Quantication and analysis of respiratory motion from 4D MRI

Ashrani Aizzuddin Abd Rahni, Emma Lewis, Kevin Wells

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1 Citation (Scopus)

Abstract

It is well known that respiratory motion affects image acquisition and also external beam radiotherapy (EBRT) treatment planning and delivery. However often the existing approaches for respiratory motion management are based on a generic view of respiratory motion such as the general movement of organ, tissue or fiducials. This paper thus aims to present a more in depth analysis of respiratory motion based on 4D MRI for further integration into motion correction in image acquisition or image based EBRT. Internal and external motion was first analysed separately, on a per-organ basis for internal motion. Principal component analysis (PCA) was then performed on the internal and external motion vectors separately and the relationship between the two PCA spaces was analysed. The motion extracted from 4D MRI on general was found to be consistent with what has been reported in literature.

Original languageEnglish
Article number012001
JournalJournal of Physics: Conference Series
Volume546
Issue number1
DOIs
Publication statusPublished - 2014

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principal components analysis
organs
radiation therapy
acquisition
planning
delivery

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Quantication and analysis of respiratory motion from 4D MRI. / Abd Rahni, Ashrani Aizzuddin; Lewis, Emma; Wells, Kevin.

In: Journal of Physics: Conference Series, Vol. 546, No. 1, 012001, 2014.

Research output: Contribution to journalArticle

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