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Quantication and analysis of respiratory motion from 4D MRI

Rahni, AAA, Lewis, E and Wells, K (2014) Quantication and analysis of respiratory motion from 4D MRI Journal of Physics: Conference Series, 546 (1).

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© Published under licence by IOP Publishing Ltd.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.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Rahni, AAA
Date : 1 January 2014
DOI : 10.1088/1742-6596/546/1/012001
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:31
Last Modified : 25 Jan 2020 00:03

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