Catheter pose-dependent virtual angioscopy images for endovascular aortic repair: validation with a video graphics array (VGA) camera

Autor: García-Vázquez Verónica, Matysiak Florian, Jäckle Sonja, Eixmann Tim, Sieren Malte Maria, von Haxthausen Felix, Ernst Floris
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Current Directions in Biomedical Engineering, Vol 6, Iss 1, Pp 1033-42 (2020)
Druh dokumentu: article
ISSN: 2364-5504
DOI: 10.1515/cdbme-2020-0010
Popis: Previous research reported catheter pose-dependent virtual angioscopy images for endovascular aortic repair (EVAR) (phantom studies) without any validation with video images. The goal of our study focused on conducting this validation using a video graphics array (VGA) camera. The spatial relationship between the coordinate system of the virtual camera and the VGA camera was computed with a Hand-Eye calibration so that both cameras produced similar images. A re-projection error of 3.18 pixels for the virtual camera and 2.14 pixels for the VGA camera was obtained with a designed three-dimensional (3D) printed chessboard. Similar images of the vessel (3D printed aorta) were acquired with both cameras except for the different depth. Virtual angioscopy images provide information from inside the vessel that may facilitate the understanding of the tip position of the endovascular tools while performing EVAR.
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