Fluoroscopic Roentgen stereophotogrammetric analysis (FRSA) to study three- dimensional stent graft dynamics Olivier H.J. Koning, MD, PhD, Bart L. Kaptein,

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Fluoroscopic Roentgen stereophotogrammetric analysis (FRSA) to study three- dimensional stent graft dynamics Olivier H.J. Koning, MD, PhD, Bart L. Kaptein, MSc, PhD, Rozemarijn van der Vijver, MD, Nuno V. Dias, MD, PhD, Martin Malina, MD, PhD, Martin J. Schalij, MD, PhD, Edward R. Valstar, MSc, PhD, J. Hajo van Bockel, MD, PhD Journal of Vascular Surgery Volume 50, Issue 2, Pages 407-412 (August 2009) DOI: 10.1016/j.jvs.2009.03.044 Copyright © 2009 Society for Vascular Surgery Terms and Conditions

Fig 1 A, Lateral and (B) posterior-anterior fluoroscopic images of the thoracic stent. The spherical shaped welding points and fabric markers are visible on the top stent. Journal of Vascular Surgery 2009 50, 407-412DOI: (10.1016/j.jvs.2009.03.044) Copyright © 2009 Society for Vascular Surgery Terms and Conditions

Fig 2 A, Lateral and (B) posterior-anterior fluoroscopic images of the abdominal stent. The spherical shaped welding points and fabric markers are visible on the top stent. Journal of Vascular Surgery 2009 50, 407-412DOI: (10.1016/j.jvs.2009.03.044) Copyright © 2009 Society for Vascular Surgery Terms and Conditions

Fig 3 Overview of the stereo reconstruction of the thoracic stent graft device. Center, Three-dimensional (3D) reconstruction of the stereo image and the Roentgen foci of the bi-plane set-up. The crossing lines reflect the position of the stent graft markers. Left, Close-up of the 3D reconstructed markers, the red markers are reconstructed from the welding points of the hooks to the top-stent, and the green markers represent the gold markers at the upper edge of the fabric of the fabric. Upper right, Close-up of the image with the detected markers, the red markers designate the welding points; the yellow markers designate the gold markers. Lower right, Close-up of a single welding point of the hook to the stent graft. These welding points are used as markers to generate the 3D stent graft image. Journal of Vascular Surgery 2009 50, 407-412DOI: (10.1016/j.jvs.2009.03.044) Copyright © 2009 Society for Vascular Surgery Terms and Conditions

Fig 4 Detail of the typical track of a thoracic stent marker. Journal of Vascular Surgery 2009 50, 407-412DOI: (10.1016/j.jvs.2009.03.044) Copyright © 2009 Society for Vascular Surgery Terms and Conditions

Fig 5 Motion of all thoracic stent markers relative to their first positions; break down in X, Y, and Z direction. Note that the markers have different motion patterns as a result of the deformation of the stent. Journal of Vascular Surgery 2009 50, 407-412DOI: (10.1016/j.jvs.2009.03.044) Copyright © 2009 Society for Vascular Surgery Terms and Conditions

Fig 6 Thoracic stent motion (X, Y, and Z motion of the center of mass of the top-stent and the change in diameter of the cylinder fitted through the stent markers). Journal of Vascular Surgery 2009 50, 407-412DOI: (10.1016/j.jvs.2009.03.044) Copyright © 2009 Society for Vascular Surgery Terms and Conditions

Fig 7 Abdominal stent motion (X, Y, and Z motion of the center of mass of the top-stent and the change in diameter of the cylinder fitted through the stent markers). Journal of Vascular Surgery 2009 50, 407-412DOI: (10.1016/j.jvs.2009.03.044) Copyright © 2009 Society for Vascular Surgery Terms and Conditions