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Authors: José Silvestre Silva 1 ; João Cancela 1 and Luísa Teixeira 2

Affiliations: 1 Universidade de Coimbra, Portugal ; 2 Clínica Universitária de Imagiologia dos Hospitais da Universidade de Coimbra, Portugal

Keyword(s): Medical Image Analysis, Image Registration, Lung Tumours, Computed Tomography.

Related Ontology Subjects/Areas/Topics: Applications and Services ; Biomedical Engineering ; Biomedical Signal Processing ; Computer Vision, Visualization and Computer Graphics ; Medical Image Detection, Acquisition, Analysis and Processing

Abstract: Now-a-days CT scanners provide detailed morphological information of pulmonary structures, with great importance to the diagnostic and follow-up of oncological diseases. When a patient with lung cancer is submitted to several CT exams during a period of time; these exams need an appropriate registration to quantify or visualize the tumour’s evolution. We propose a new method for 3D intra-patient registration of thoracic CT exams and compare its results with several 3D registration methods. The performance of these registration methods is analysed, computing several normalized figures of merit; we also explore these metrics to check which is more sensible to changes in CT exams due to the presence of lung tumours. The results with several cases of intra-patient, intra-modality registration show that the proposed method provides an accurate registration which is needed for the quantitative tracking of lesions that may effectively assist the follow-up process of oncological patients.

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Paper citation in several formats:
Silvestre Silva, J.; Cancela, J. and Teixeira, L. (2009). INTRA-PATIENT REGISTRATION METHODS FOR THORACIC CT EXAMS . In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing (BIOSTEC 2009) - BIOSIGNALS; ISBN 978-989-8111-65-4; ISSN 2184-4305, SciTePress, pages 285-290. DOI: 10.5220/0001538002850290

@conference{biosignals09,
author={José {Silvestre Silva}. and João Cancela. and Luísa Teixeira.},
title={INTRA-PATIENT REGISTRATION METHODS FOR THORACIC CT EXAMS },
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing (BIOSTEC 2009) - BIOSIGNALS},
year={2009},
pages={285-290},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001538002850290},
isbn={978-989-8111-65-4},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing (BIOSTEC 2009) - BIOSIGNALS
TI - INTRA-PATIENT REGISTRATION METHODS FOR THORACIC CT EXAMS
SN - 978-989-8111-65-4
IS - 2184-4305
AU - Silvestre Silva, J.
AU - Cancela, J.
AU - Teixeira, L.
PY - 2009
SP - 285
EP - 290
DO - 10.5220/0001538002850290
PB - SciTePress