使用激光导航系统进行CT引导介入治疗的干预计划：一项体模和患者研究

Intervention Planning Using a Laser Navigation System for CT-Guided Interventions: A Phantom and Patient Study.

作者信息

Gruber-Rouh Tatjana, Lee Clara, Bolck Jan, Naguib Nagy N N, Schulz Boris, Eichler Katrin, Aschenbach Rene, Wichmann Julian L, Vogl Thomas J, Zangos Stephan

机构信息

Institute for Diagnostic and Interventional Radiology, J. W. Goethe University of Frankfurt, Frankfurt 60590, Germany.

Institute for Diagnostic and Interventional Radiology, J. W. Goethe University of Frankfurt, Frankfurt 60590, Germany. ; Department of Radiology, Faculty of Medicine, Alexandria University, Alexandria 21514, Egypt.

出版信息

Korean J Radiol. 2015 Jul-Aug;16(4):729-35. doi: 10.3348/kjr.2015.16.4.729. Epub 2015 Jul 1.

DOI:10.3348/kjr.2015.16.4.729

PMID:26175571

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4499536/

Abstract

OBJECTIVE

To 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 METHODS

Sixty 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 underwent LNS-guided punctures.

RESULTS

The phantom 1-LNS group showed a target point accuracy of 4.0 ± 2.7 mm (freehand, 6.3 ± 3.6 mm; p = 0.008), entrance point accuracy of 0.8 ± 0.6 mm (freehand, 6.1 ± 4.7 mm), needle angulation accuracy of 1.3 ± 0.9° (freehand, 3.4 ± 3.1°; p < 0.001), intervention time of 7.03 ± 5.18 minutes (freehand, 8.38 ± 4.09 minutes; p = 0.006), and 4.2 ± 3.6 CT images (freehand, 7.9 ± 5.1; p < 0.001). These results show significant improvement in 60 punctures compared to freehand. The phantom 2-LNS group showed a target point accuracy of 3.6 ± 2.5 mm, entrance point accuracy of 1.4 ± 2.0 mm, needle angulation accuracy of 1.0 ± 1.2°, intervention time of 1.44 ± 0.22 minutes, and 3.4 ± 1.7 CT images. The LNS group achieved target point accuracy of 5.0 ± 1.2 mm, entrance point accuracy of 2.0 ± 1.5 mm, needle angulation accuracy of 1.5 ± 0.3°, intervention time of 12.08 ± 3.07 minutes, and used 5.7 ± 1.6 CT-images for the first experience with patients.

CONCLUSION

Laser navigation system improved accuracy, duration of intervention, and radiation dose of CT-guided interventions.

摘要

目的

比较一种新型激光导航系统（LNS）与计算机断层扫描（CT）引导下徒手穿刺在准确性、效率和辐射剂量方面的差异。

材料与方法

使用模拟人体模型进行60次穿刺，以比较传统徒手穿刺方法与LNS引导方法在准确性、操作时间和辐射剂量方面的差异。在另一个模拟人体模型上进行了另外20次LNS引导的干预操作以确认准确性。随后对10例患者进行了LNS引导下的穿刺。

结果

模拟人体模型1-LNS组的靶点定位准确性为4.0±2.7mm（徒手穿刺为6.3±3.6mm；p = 0.008），进针点准确性为0.8±0.6mm（徒手穿刺为6.1±4.7mm），进针角度准确性为1.3±0.9°（徒手穿刺为3.4±3.1°；p<0.001），干预时间为7.03±5.18分钟（徒手穿刺为8.38±4.09分钟；p = 0.006），使用4.2±3.6张CT图像（徒手穿刺为7.9±5.1张；p<0.001）。与徒手穿刺相比，这60次穿刺的结果显示出显著改善。模拟人体模型2-LNS组的靶点定位准确性为3.6±2.5mm，进针点准确性为1.4±2.0mm，进针角度准确性为1.0±1.2°，干预时间为1.44±0.22分钟，使用3.4±1.7张CT图像。LNS组患者首次操作时的靶点定位准确性为5.0±1.2mm，进针点准确性为2.0±1.5mm，进针角度准确性为1.5±0.3°，干预时间为12.08±3.07分钟，使用5.7±1.6张CT图像。