RT Journal Article
SR Electronic
T1 Combining C-arm CT with a new remote operated positioning and guidance system for guidance of minimally invasive spine interventions
JF Journal of NeuroInterventional Surgery
JO J NeuroIntervent Surg
FD BMJ Publishing Group Ltd.
SP 303
OP 308
DO 10.1136/neurintsurg-2013-011034
VO 7
IS 4
A1 Christoph Czerny
A1 Katrin Eichler
A1 Yann Croissant
A1 Boris Schulz
A1 Gernot Kronreif
A1 Renate Schmidt
A1 Martin von Roden
A1 Christof Schomerus
A1 Thomas J Vogl
A1 Ingo Marzi
A1 Stephan Zangos
YR 2015
UL http://jnis.bmj.com/content/7/4/303.abstract
AB Objective To report our experience using C-arm cone beam CT (C-arm CBCT) combined with the new remote operated positioning and guidance system, iSYS1, for needle guidance during spinal interventions. Methods A C-arm CBCT with a flat panel angiography system was acquired (Artis Zeego; Siemens Healthcare Sector, Forchheim, Germany). Reconstruction of CT-like images and planning of the needle path were performed using a common workstation. The needle holder of iSYS1 acted as a guide during insertion of Kirschner (K) wires. 20 percutaneous K wires were placed in the pedicles at T2–T3, T7–T12, and L1–L2 in a cadaver specimen. Postprocedure C-arm CBCT scans were obtained to confirm the accuracy of the K wire placement. Results All K wire placements were successfully performed. Mean planning time with Syngo iGuide was 4:16 min, mean positioning time of iSYS1 was 3:35 min, and mean placement time of the K wires was 2:22 min. Mean total intervention time was 10:13 min per pedicle. A mean deviation of 0.35 mm between the planned path and the placed K wire with a mean path length of 6.73 cm was documented. Conclusions Our results demonstrate the potential of combining C-arm CBCT with iSYS1 for safe and accurate percutaneous placement of pedicle K wires in spinal interventions.