An Electromagnetic Tracking Needle Clip: An Enabling Design for Low-Cost Image-Guided Therapy

Author(s):  
Zhuo Zhao ◽  
Sheng Xu ◽  
Bradford Wood ◽  
Zion Tsz Ho Tse

Computer-assisted interventions (CAI) — which offer advantages such as increased accuracy, reduction of complications, and decreased intervention time — have increased in prevalence in recent years. A type of CAI called image-guided therapy (IGT) can be used to provide navigation for freehand procedures or guidance for localization of medical devices. Electromagnetic (EM) tracking technology can track instruments such as needle tips inside the patient body without the need for a line-of-sight, allowing for minimally invasive imaging-guided procedures [1–3].

2019 ◽  
Vol 5 (2) ◽  
pp. 23
Author(s):  
Austin Taylor ◽  
Sheng Xu ◽  
Bradford Wood ◽  
Zion Tse

The objective of this study is to preliminarily evaluate a lesion-targeting device for CT-guided interventions. The device is created by laser cutting the structure from a sheet of medical grade paperboard, 3D printing two radiocontrast agent grids onto the surface and folding the structure into a rectangular prism with a viewing window. An abdominal imaging phantom was used to evaluate the device through CT imaging and the targeting of lesions for needle insertion. The lesion-targeting trials resulted in a mean targeting error of 2.53 mm (SD 0.59 mm, n = 30). The device is rigid enough to adequately support standard biopsy needles, and it attaches to the patient, reducing the risk of tissue laceration by needles held rigidly in place by an external manipulator. Additional advantages include adequate support for the insertion of multiple surgical tools at once for procedures such as composite ablation and the potential to guide off-axial needle insertion. The low-cost and disposability of the device make it well-suited for the minimally invasive image-guided therapy environment.


2010 ◽  
Vol 1 (3) ◽  
pp. 167-181 ◽  
Author(s):  
Beatrijs A. Seinstra ◽  
Otto M. van Delden ◽  
Karel J. van Erpecum ◽  
Richard van Hillegersberg ◽  
Willem P. Th. M. Mali ◽  
...  

Brachytherapy ◽  
2015 ◽  
Vol 14 (6) ◽  
pp. 910-912 ◽  
Author(s):  
Christian Kirisits ◽  
Maximilian P. Schmid ◽  
Sushil Beriwal ◽  
Richard Pötter

Author(s):  
Tina Kapur ◽  
Jan Egger ◽  
Jagadeesan Jayender ◽  
Matthew Toews ◽  
William M. Wells

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