Source of Errors and Accuracy of a Two-Dimensional/Three-Dimensional Fusion Road Map for Endovascular Aneurysm Repair of Abdominal Aortic Aneurysm

Feasibility and accuracy of fusion imaging during thoracic endovascular aortic repair

“…We used the Syngo X-Workplace (Software versions VB15D and VB20C) with commercially available inSpace for overlay of a 3D reconstruction or a prototypical AAA guidance software for overlay of a segmentation of the aorta (both Siemens AG, Healthcare Section, Forchheim, Germany). This prototypical software has also been used and described by Kauffmann et al 6 Second, optimal parallax corrected position of the C-arm was calculated based on a double perpendicular view on the proximal landing zone and the target vessel ostium (Fig 2). This was done by angulation of the 3D reconstruction manually and automatically.…”

“…In the initial phase we used a 3D-3D registration of a noncontrast-enhanced cone beam CT (nCBCT) scan and the preoperative CTA, as similarly described by other groups. 4,6 After gaining intensive experience with this work flow for EVAR procedures, performing an nCBCT for TEVAR was possible in less than 5 minutes.…”

Feasibility of three-dimensional magnetic resonance angiography-fluoroscopy image fusion technique in guiding complex endovascular aortic procedures in patients with renal insufficiency

“…Detailed analyses of accuracy of 2D and 3D errors during image fusion were described earlier for the CTA-CBCT registration process in 16 EVAR patients. 19 Finally, our retrospective qualitative analysis method compared the virtual landmarks with the actual vessel location or trajectory based on a 2D fluoroscopy or angiography image. We have thus no assessment of the 3D orientation of vessels during accuracy evaluation, and any imprecisions in the plane perpendicular to the C-arm projection evaluated may not be captured in this qualitative analysis.…”

Research on the accuracy of three‐dimensional localization and navigation in robot‐assisted spine surgery

“…The hardware components of the three‐dimensional robot‐assisted surgical navigation system were shown in Figure , namely, C‐arm (PLX7000A), calibration target, graphics workstation, Northern Digital Inc (NDI) positioning and tracking system, KUKA (KR 6 R900 sixx) robot, Programmable Logic Controller (PLC), and spine model. Among them, C‐arm was used for real‐time acquisition of intraoperative X‐ray images, and calibration target was used for matching two‐dimensional coordinate system and three‐dimensional spatial coordinate system in the 2D‐3D registration module . The NDI positioning and tracking system was used to obtain the solution of the relative posture between the calibration target and the affected bone model.…”

“…Among them, C-arm was used for real-time acquisition of intraoperative X-ray images, and calibration target was used for matching two-dimensional coordinate system and three-dimensional spatial coordinate system in the 2D-3D registration module. [29][30][31] The NDI positioning and tracking system was used to obtain the solution of the relative posture between the calibration target and the affected bone model. The KUKA robot was used for the localization and puncture of surgical navigation.…”