A novel Laser Navigation System reduces radiation exposure and improves accuracy and workflow of CT-guided spinal interventions: A prospective, randomized, controlled, clinical trial in comparison to conventional freehand puncture

Moser, Carsten; Becker, Jan De; Deli, M.; Busch, M.; Boehme, Marc; Groenemeyer, Dietrich H.W.

doi:10.1016/j.ejrad.2012.10.028

Cited by 33 publications

(27 citation statements)

References 22 publications

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“…A randomized paired trial has shown that a laser guidance system can improve the accuracy, the number of control CT acquisitions and the time to place the needle [12]. Yet, such laser-based guidance systems do not have complete navigation capabilities, including real-time tracking of needle movements.…”

Section: Discussionmentioning

confidence: 99%

Computer assisted electromagnetic navigation improves accuracy in computed tomography guided interventions: A prospective randomized clinical trial

et al. 2017

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PurposeTo assess the accuracy and usability of an electromagnetic navigation system designed to assist Computed Tomography (CT) guided interventions.Materials and methods120 patients requiring a percutaneous CT intervention (drainage, biopsy, tumor ablation, infiltration, sympathicolysis) were included in this prospective randomized trial. Nineteen radiologists participated. Conventional procedures (CT group) were compared with procedures assisted by a navigation system prototype using an electromagnetic localizer to track the position and orientation of a needle holder (NAV group). The navigation system displays the needle path in real-time on 2D reconstructed CT images extracted from the 3D CT volume. The regional ethics committee approved this study and all patients gave written informed consent. The main outcome was the distance between the planned trajectory and the achieved needle trajectory calculated from the initial needle placement.Results120 patients were analyzable in intention-to-treat (NAV: 60; CT: 60). Accuracy improved when the navigation system was used: distance error (in millimeters: median[P25%; P75%]) with NAV = 4.1[2.7; 9.1], vs. with CT = 8.9[4.9; 15.1] (p<0.001). After the initial needle placement and first control CT, fewer subsequent CT acquisitions were necessary to reach the target using the navigation system: NAV = 2[2; 3]; CT = 3[2; 4] (p = 0.01).ConclusionThe tested system was usable in a standard clinical setting and provided significant improvement in accuracy; furthermore, with the help of navigation, targets could be reached with fewer CT control acquisitions.

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Section: Discussionmentioning

confidence: 99%

Computer assisted electromagnetic navigation improves accuracy in computed tomography guided interventions: A prospective randomized clinical trial

et al. 2017

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“…Philips (13) used a 6‐DOF Kawasaki FS2 articulated arm to place a laser reference for the needle trajectory. The arm was mounted on a CT scanner gantry and registered with its coordinate system (57,58), for integration of imaging and needle placement. This is the only system in this category that does not need translation of the imager table to fully align the axial laser reference with the planned needle path, although translation of the imager table is still required for initial coarse positioning of the patient within its range of motion.…”

Section: Resultsmentioning

confidence: 99%

“…The same CT‐integrated articulated robot used by Wood et al . (57,58) was previously equipped with a pneumatic needle gripper to automate needle placement, including automated needle insertion, by Yanof et al . (102).…”

Section: Resultsmentioning

confidence: 99%

An overview of systems for CT‐ and MRI‐guided percutaneous needle placement in the thorax and abdomen

Arnolli¹,

Hanumara

Franken³

et al. 2014

Robotics Computer Surgery

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“…However, as other certified products for guiding percutaneous needle insertions exist that rely on the assumption that gating the respiratory motion is sufficient as means of dealing with motion uncertainties (e.g., [30]), this may not hinder the presented approach from being accepted as a valuable assistance for needle insertion procedures. In particular, its low hardware complexity, the resulting simple integration into the clinical workflow and the expected reduction in time needed for the intervention make the presented approach attractive for future clinical use.…”

Section: Automationmentioning

confidence: 98%

Towards markerless navigation for percutaneous needle insertions

et al. 2015

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A novel Laser Navigation System reduces radiation exposure and improves accuracy and workflow of CT-guided spinal interventions: A prospective, randomized, controlled, clinical trial in comparison to conventional freehand puncture

Cited by 33 publications

References 22 publications

Computer assisted electromagnetic navigation improves accuracy in computed tomography guided interventions: A prospective randomized clinical trial

Computer assisted electromagnetic navigation improves accuracy in computed tomography guided interventions: A prospective randomized clinical trial

An overview of systems for CT‐ and MRI‐guided percutaneous needle placement in the thorax and abdomen

Towards markerless navigation for percutaneous needle insertions

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