AngleNav: MEMS Tracker to Facilitate CT-Guided Puncture.
AngleNav: MEMS Tracker to Facilitate CT-Guided Puncture.
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DOI：
10.1007/s10439-017-1968-4
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发表时间：
2018-03
影响因子：
3.8
通讯作者：
Tse ZTH
中科院分区：
文献类型：
--
作者：
Li R;Xu S;Pritchard WF;Karanian JW;Krishnasamy VP;Wood BJ;Tse ZTH
作为一种低成本的针头导航系统，AngleNav可用于提高ct引导针头穿刺的准确性、速度和便利性。AngleNav硬件包括一个带有微机电（MEMS）跟踪器的无线设备，可以连接到任何标准针头上。医生在CT切片图像上定义目标，所需的针头路径和皮肤入口点。AngleNav的精度首先在台式设置的3d打印校准平台上进行测试。然后在CT扫描仪中进行腹部幻像研究，以验证设备角度测量的准确性。最后，在猪体内进行了一项研究，以引导针头指向肝脏目标（n = 8）。CT扫描的目标被用来量化角误差和针尖到目标的距离误差之间的规划针路径和最终针的位置。在台式环境下，MEMS跟踪器的平均角误差为0.01°，标准差为0.62°。腹部幻像测试显示，平均角度误差为0.87°，SD为1.19°；平均尖端到目标距离误差为4.89 mm， SD为1.57 mm。动物实验的平均角度误差为6.6°，SD为1.9°；平均尖端到目标距离误差为8.7 mm， SD为3.1 mm。这些结果证明了AngleNav在ct引导下介入工作流程中的可行性。使用AngleNav代替徒手插入，在操作者数量有限的情况下，角度误差和距离误差分别降低了64.4%和54.8%。AngleNav帮助医生在ct引导下进行准确的针入。该设备可能会减少医生进行ct引导针头定位的学习曲线。
As a low-cost needle navigation system, AngleNav may be used to improve the accuracy, speed, and ease of CT-guided needle punctures. The AngleNav hardware includes a wireless device with a microelectromechanical (MEMS) tracker that can be attached to any standard needle. The physician defines the target, desired needle path and skin entry point on a CT slice image. The accuracy of AngleNav was first tested in a 3D-printed calibration platform in a benchtop setting. An abdominal phantom study was then performed in a CT scanner to validate the accuracy of the device’s angular measurement. Finally, an in vivo swine study was performed to guide the needle towards liver targets (n = 8). CT scans of the targets were used to quantify the angular errors and needle tip-to-targeting distance errors between the planned needle path and the final needle position. The MEMS tracker showed a mean angular error of 0.01° with a standard deviation (SD) of 0.62° in the benchtop setting. The abdominal phantom test showed a mean angular error of 0.87° with an SD of 1.19° and a mean tip-to-target distance error of 4.89 mm with an SD of 1.57 mm. The animal experiment resulted in a mean angular error of 6.6° with an SD of 1.9° and a mean tip-to-target distance error of 8.7 mm with an SD of 3.1 mm. These results demonstrated the feasibility of AngleNav for CT-guided interventional workflow. The angular and distance errors were reduced by 64.4 and 54.8% respectively if using AngleNav instead of freehand insertion, with a limited number of operators. AngleNav assisted the physicians to deliver accurate needle insertion during CT-guided intervention. The device could potentially reduce the learning curve for physicians to perform CT-guided needle targeting.
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DOI：
10.1109/tra.2003.817510
发表时间：
2003-10-01
期刊：
IEEE TRANSACTIONS ON ROBOTICS AND AUTOMATION
影响因子：
--
作者：
Jakopec, M;Rodriguez y Baena, F;Davies, BL
通讯作者：
Davies, BL
DOI：
10.3109/13645706.2014.928641
发表时间：
2014-10-01
影响因子：
1.7
作者：
Kettenbach, Joachim;Kara, Levent;Kronreif, Gernot
通讯作者：
Kronreif, Gernot
影响因子：
10.9
作者：
Fichtinger, Gabor;Fiene, Jonathan P.;Kazanzides, Peter
通讯作者：
Kazanzides, Peter
影响因子：
5.9
作者：
Kloeppel, R;Weisse, T;Pecher, S
通讯作者：
Pecher, S
影响因子：
19.7
作者：
HAAGA, JR;ALFIDI, RJ
通讯作者：
ALFIDI, RJ