Erschienen in:
01.09.2018 | Original Article
MR-conditional steerable needle robot for intracerebral hemorrhage removal
verfasst von:
Yue Chen, Isuru S. Godage, Saikat Sengupta, Cindy Lin Liu, Kyle D. Weaver, Eric J. Barth
Erschienen in:
International Journal of Computer Assisted Radiology and Surgery
|
Ausgabe 1/2019
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Abstract
Background
Intracerebral hemorrhage (ICH) is one of the deadliest forms of stroke in the USA. Conventional surgical techniques such as craniotomy or stereotactic aspiration disrupt a large volume of healthy brain tissue in their attempts to reach the surgical site. Consequently, the surviving patients suffer from debilitating complications.
Methods
We fabricated a novel MR-conditional steerable needle robot for ICH treatment. The robot system is powered by a custom-designed high power and low-cost pneumatic motor. We tested the robot’s targeting accuracy and MR-conditionality performance, and performed phantom evacuation experiment under MR image guidance.
Results
Experiments demonstrate that the robotic hardware is MR-conditional; the robot has the targeting accuracy of 1.26 ± 1.22 mm in bench-top tests. With real-time MRI guidance, the robot successfully reached the desired target and evacuated an 11.3 ml phantom hematoma in 9 min.
Conclusion
MRI-guided steerable needle robotic system is a potentially feasible approach for ICH treatment by providing accurate needle guidance and intraoperative surgical outcome evaluation.