2015
DOI: 10.3348/kjr.2015.16.4.729
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Intervention Planning Using a Laser Navigation System for CT-Guided Interventions: A Phantom and Patient Study

Abstract: ObjectiveTo investigate the accuracy, efficiency and radiation dose of a novel laser navigation system (LNS) compared to those of free-handed punctures on computed tomography (CT).Materials and MethodsSixty punctures were performed using a phantom body to compare accuracy, timely effort, and radiation dose of the conventional free-handed procedure to those of the LNS-guided method. An additional 20 LNS-guided interventions were performed on another phantom to confirm accuracy. Ten patients subsequently underwe… Show more

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Cited by 11 publications
(9 citation statements)
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“…10,11 Various reports have also confirmed the value of these devices in improving puncture accuracy, reducing operating time, and reducing patients’ radiation. 11-13 Our device uses a simple table and laser line projector that allows easy and accurate alignment of a biopsy needle on the X–Y plane, and the initial results demonstrate that this setup can achieve similar results as commercially available laser navigation systems in terms of time saving and dose reduction. The procedure time is reduced because of fewer needle corrections, and the patient’s exposure to radiation is reduced because fewer scans are needed to confirm the needle position.…”
Section: Discussionmentioning
confidence: 98%
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“…10,11 Various reports have also confirmed the value of these devices in improving puncture accuracy, reducing operating time, and reducing patients’ radiation. 11-13 Our device uses a simple table and laser line projector that allows easy and accurate alignment of a biopsy needle on the X–Y plane, and the initial results demonstrate that this setup can achieve similar results as commercially available laser navigation systems in terms of time saving and dose reduction. The procedure time is reduced because of fewer needle corrections, and the patient’s exposure to radiation is reduced because fewer scans are needed to confirm the needle position.…”
Section: Discussionmentioning
confidence: 98%
“…A disadvantage of commercial laser guiding systems, as described by Gruber-Rouh et al, 11 is that the laser needs to enter along the puncture needle extension line, and the operator’s body may block the light, especially when the puncture angle is relatively large. 12 Therefore, the operator often needs to rotate their body to one side, resulting in a one-handed operation, or standing on the opposite side, which may impair the stability of needle advancement and affect the operator’s haptic sensations. Because this device is mounted at the foot of the CT table and the laser comes toward the CT gantry along the longitudinal plane, the operator does not need to change their position, which allows for a normal two-handed procedure.…”
Section: Discussionmentioning
confidence: 99%
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“…Altogether resulting in fewer complications and higher diagnostic accuracy [15, 16]. However, the main disadvantage of CT-guided intervention remains the radiation exposure of the patient [17, 18]. The radiation dose aspect is fundamental in a pediatric patient cohort.…”
Section: Discussionmentioning
confidence: 99%
“…The feasibility of CT-guided bone biopsies using a novel robotic needle guide was evaluated in [ 12 ]. Laser navigation systems are another possibility, as reported in [ 13 ]. Many current navigation systems are electromagnetic, not optical or infrared.…”
Section: Research Contextmentioning
confidence: 99%