Software architecture for multi-bed FDK-based reconstruction in X-ray CT scanners

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Show simple item record Abella García, Mónica Vaquero López, Juan José Sisniega, Alejandro Pascau González Garzón, Javier Udías, Ángel García, V. Vidal-Migallón, I. Desco Menéndez, Manuel 2012-06-08T12:04:56Z 2012-06-08T12:04:56Z 2012-08
dc.identifier.bibliographicCitation Computer Methods and Programs in Biomedicine, (Aug. 2012), 107(2), 218-232
dc.identifier.issn 0169-2607
dc.description.abstract Most small-animal X-ray computed tomography (CT) scanners are based on cone-beam geometry with a flat-panel detector orbiting in a circular trajectory. Image reconstruction in these systems is usually performed by approximate methods based on the algorithm proposed by Feldkamp et al. (FDK). Besides the implementation of the reconstruction algorithm itself, in order to design a real system it is necessary to take into account numerous issues so as to obtain the best quality images from the acquired data. This work presents a comprehensive, novel software architecture for small-animal CT scanners based on cone-beam geometry with circular scanning trajectory. The proposed architecture covers all the steps from the system calibration to the volume reconstruction and conversion into Hounsfield units. It includes an efficient implementation of an FDK-based reconstruction algorithm that takes advantage of system symmetries and allows for parallel reconstruction using a multiprocessor computer. Strategies for calibration and artifact correction are discussed to justify the strategies adopted. New procedures for multi-bed misalignment, beam-hardening, and Housfield units calibration are proposed. Experiments with phantoms and real data showed the suitability of the proposed software architecture for an X-ray small animal CT based on cone-beam geometry.
dc.description.sponsorship This work was partially funded by AMIT project from the CDTI CENIT program, TEC2007-64731, TEC2008-06715- C02-01, RD07/0014/2009, TRA2009 0175, RECAVA-RETIC, and RD09/0077/00087 (Ministerio de Ciencia e Inovación), and ARTEMIS S2009/DPI-1802 (Comunidad de Madrid).
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights © Elsevier
dc.subject.other Cone-beam
dc.subject.other FKD
dc.subject.other X-ray computed tomography (CT)
dc.subject.other Reconstruction
dc.subject.other CT artifacts
dc.title Software architecture for multi-bed FDK-based reconstruction in X-ray CT scanners
dc.type article
dc.description.status Publicado
dc.subject.eciencia Biología y Biomedicina
dc.identifier.doi 10.1016/j.cmpb.2011.06.008
dc.rights.accessRights openAccess
dc.relation.projectID Comunidad de Madrid. S2009/DPI-1802/ARTEMIS
dc.relation.projectID Gobierno de España. TEC2007-64731
dc.relation.projectID Gobierno de España. TEC2008-06715-C02-01
dc.relation.projectID Gobierno de España. TRA2009-0175
dc.relation.projectID Gobierno de España. RD09/0077/00087
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 218
dc.identifier.publicationissue 2
dc.identifier.publicationlastpage 232
dc.identifier.publicationtitle Computer Methods and Programs in Biomedicine
dc.identifier.publicationvolume 107
dc.identifier.uxxi AR/0000011974
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