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- W2048934306 abstract "Cone-beam CT guided targeting system or XperGuide (Philips Medical Systems) is a novel real-time needle navigation system on live fluoroscopy overlapped with cone-beam CT (CBCT) image as a potentially practical tool. The purpose of this study was to evaluate the accuracy and feasibility of this system using a phantom model. A phantom was made of corn flour and clay that contained multiple 1 cm kneaded erasers as targets. The target can be recognized at CBCT image, but invisible under X-ray fluoroscopy. The needle path reaching the target was planned on CBCT images of the phantom on 3D-workstation. Two radiologists inserted a 19G 20 cm needle to aim at separately eight targets in different set angles under XperGuide. In each puncture, the needle was positioned in the target circle and aligned with planned path on the “entry view” or “Bull’s eye view”. Then, the needle was progressed under fluoroscopy until the target has been reached on the “progress view”. To verify the accuracy of the puncture, the gap or distance between the needle tip and the center of the target was measured on CBCT images obtained after each puncture. Fluoroscopy time was also measured. With XperGuide system, fifteen (93.8%) of 16 targets were successfully targeted with the first needle pass. Mean distance from the surface puncture point to the target was 72.1 ± 13.2 mm. Mean gap was 3.83 ± 1.92 mm. In the unsuccessful case, the gap was 9.43 mm. Mean fluoroscopy time was 67.3 ± 27.3 seconds. On the basis of these results, CBCT guided targeting system or XperGuide is feasible and allows accurate lesion targeting in a phantom model." @default.
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- W2048934306 date "2008-02-01" @default.
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- W2048934306 title "Abstract No. 237: A Novel Cone-Beam CT Guided Interventions by XperGuide: Accuracy and Feasibility in a Phantom Model" @default.
- W2048934306 doi "https://doi.org/10.1016/j.jvir.2007.12.263" @default.
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