CT- and MRI-guided computer-assisted needle placement

Abstract:
"Background
Minimally invasive biopsies, drainages and therapies in the soft tissue organs of the thorax and abdomen are typically performed through a needle, which is inserted percutaneously to reach the  target area. The conventional workflow for needle placement employs an iterative freehand  technique. This article provides an overview of needle-placement systems developed to improve this method.
Methods  
An overview of systems for needle placement was assembled, including those found in scientific publications and patents, as well as those that are commercially available. The systems are categorized by function and tabulated.
Results
Over 40 systems were identified, ranging from simple passive aids to fully actuated robots.
Conclusions  
The overview shows a wide variety of developed systems with growing complexity. However, given that only a few systems have reached commercial availability, it is clear that the technical community is struggling to develop solutions that are adopted clinically. 
Copyright © 2014 John Wiley &  Sons, Ltd."

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