Esterr-pro: a setup verification software system using electronic portal imaging

dc.contributor.author	Ασβεστάς, Παντελής Α.	el
dc.contributor.author	Δελήμπασης, Κωνσταντίνος Κ.	el
dc.contributor.author	Μουραβλιάνσκυ, Νικόλαος Α.	el
dc.contributor.author	Ματσόπουλος, Γεώργιος Κ.	el
dc.date.accessioned	2015-01-13T16:14:13Z
dc.date.available	2015-01-13T16:14:13Z
dc.date.issued	2015-01-13
dc.identifier.uri	http://hdl.handle.net/11400/3942
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.hindawi.com/	en
dc.subject	Software registration system
dc.subject	Radiotherapy
dc.subject	Λογισμικό σύστημα καταχώρησης
dc.subject	Ραδιοθεραπεία
dc.title	Esterr-pro: a setup verification software system using electronic portal imaging	en
heal.type	journalArticle
heal.classification	Medicine
heal.classification	Medical technology
heal.classification	Ιατρική
heal.classification	Ιατρικά όργανα και εξοπλισμός
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://skos.um.es/unescothes/C02465
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Ιατρικά όργανα και εξοπλισμός
heal.identifier.secondary	doi: 10.1155/2007/61523
heal.language	en
heal.access	free
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2007
heal.bibliographicCitation	Asvestas, P., Delibasis, K., Mouravliansky, N. and Matsopoulos, G. (2007). Esterr-pro: a setup verification software system using electronic portal imaging. International Journal of Biomedical Imaging. vol. 2007. pp. 1-11. Available from: http://www.ncbi.nlm.nih.gov [Accessed 29/11/2006]	en
heal.abstract	The purpose of the paper is to present and evaluate the performance of a new software-based registration system for patient setup verification, during radiotherapy, using electronic portal images. The estimation of setup errors, using the proposed system, can be accomplished by means of two alternate registration methods. (a) The portal image of the current fraction of the treatment is registered directly with the reference image (digitally reconstructed radiograph (DRR) or simulator image) using a modified manual technique. (b) The portal image of the current fraction of the treatment is registered with the portal image of the first fraction of the treatment (reference portal image) by applying a nearly automated technique based on self-organizing maps, whereas the reference portal has already been registered with a DRR or a simulator image. The proposed system was tested on phantom data and on data from six patients. The root mean square error (RMSE) of the setup estimates was 0.8 ± 0.3 (mean value ± standard deviation) for the phantom data and 0.3 ± 0.3 for the patient data, respectively, by applying the two methodologies. Furthermore, statistical analysis by means of the Wilcoxon nonparametric signed test showed that the results that were obtained by the two methods did not differ significantly (P value > 0.05).	en
heal.publisher	Hindawi Publishing Corporation	en
heal.journalName	International Journal of Biomedical Imaging	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true