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Online C-arm calibration using a marked guide wire for 3D reconstruction of pulmonary arteries

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Vachon, Étienne et Miró, Joaquim et Duong, Luc. 2017. « Online C-arm calibration using a marked guide wire for 3D reconstruction of pulmonary arteries ». In Medical Imaging 2017: Image-Guided Procedures, Robotic Interventions, and Modeling (Orlando, FL, USA, Feb. 11-16, 2017) Coll. « Proceeding of SPIE », vol. 10135. SPIE.
Compte des citations dans Scopus : 1.

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Résumé

3D reconstruction of vessels from 2D X-ray angiography is highly relevant to improve the visualization and the assessment of vascular structures such as pulmonary arteries by interventional cardiologists. However, to ensure a robust and accurate reconstruction, C-arm gantry parameters must be properly calibrated to provide clinically acceptable results. Calibration procedures often rely on calibration objects and complex protocol which is not adapted to an intervention context. In this study, a novel calibration algorithm for C-arm gantry is presented using the instrumentation such as catheters and guide wire. This ensures the availability of a minimum set of correspondences and implies minimal changes to the clinical workflow. The method was evaluated on simulated data and on retrospective patient datasets. Experimental results on simulated datasets demonstrate a calibration that allows a 3D reconstruction of the guide wire up to a geometric transformation. Experiments with patients datasets show a significant decrease of the retro projection error to 0.17 mm 2D RMS. Consequently, such procedure might contribute to identify any calibration drift during the intervention.

Type de document: Compte rendu de conférence
Professeur:
Professeur
Duong, Luc
Affiliation: Génie logiciel et des technologies de l'information
Date de dépôt: 20 avr. 2017 18:02
Dernière modification: 29 nov. 2018 13:56
URI: http://espace2.etsmtl.ca/id/eprint/15125

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