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Inter- and intra-subject variation of abdominal vs. thoracic respiratory motion using kernel density estimation

Alnowami, M, Lewis, E, Wells, K and Guy, M (2010) Inter- and intra-subject variation of abdominal vs. thoracic respiratory motion using kernel density estimation In: Nuclear Science Symposium and Medical Imaging Conference, 2010-10-30 - 2010-11-06, Knoxville, USA.

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Abstract

In nuclear medicine, there is a significant research focus in developing a new approach in monitoring, tracking and compensating respiratory motion during image acquisition. We address this by attempting to model the respiratory cycle pattern and finding a method that describes the configuration of the anterior surface which then correlates with the internal position/configuration of the internal organ as a foundation for motion compensation. This paper presents novel work in parameterizing external respiratory motion using a method based on the variation of abdominal vs. thoracic surface markers to investigate inter- and intra-subject variation. The dominant mode of variation of the Abdominal and Thoracic surfaces during respiration using Principle Component Analysis (PCA) is studied. This demonstrates that pattern of TS vs AS motion appears temporally at a global level stable. Thus although breathing style is consistent within a given subject, we there observe temporal changes in the amplitude and density of the PDF in intra-subject data.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Vision Speech and Signal Processing
Authors :
AuthorsEmailORCID
Alnowami, MUNSPECIFIEDUNSPECIFIED
Lewis, EUNSPECIFIEDUNSPECIFIED
Wells, KUNSPECIFIEDUNSPECIFIED
Guy, MUNSPECIFIEDUNSPECIFIED
Date : 2010
Identification Number : 10.1109/NSSMIC.2010.5874330
Additional Information : © 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Depositing User : Symplectic Elements
Date Deposited : 24 Jan 2014 09:40
Last Modified : 24 Jan 2014 09:40
URI: http://epubs.surrey.ac.uk/id/eprint/804809

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