An accelerometer-based guidance device for CT-guided procedures: an improved wireless prototype

The aim of the study was to demonstrate the feasibility of a prototype for accelerometer-based guidance for percutaneous CT-guided punctures and compare it with free-hand punctures. The prototype enabled alignment with the CT coordinate system and a wireless connectivity. Its feasibility was tested...

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Bibliographic Details
Published in:Minimally invasive therapy and allied technologies 2022-08, Vol.31 (6), p.902-908
Main Authors: Pedersoli, Federico, Wilkmann, Christoph, Penzkofer, Tobias, Disselhorst-Klug, Catherine, Schmitz-Rode, Thomas, Kuhl, Christiane, Bruners, Philipp, Isfort, Peter
Format: Article
Language:English
Subjects:
image-guided biopsy
multidetector computed tomography
Punctures
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Summary:The aim of the study was to demonstrate the feasibility of a prototype for accelerometer-based guidance for percutaneous CT-guided punctures and compare it with free-hand punctures. The prototype enabled alignment with the CT coordinate system and a wireless connectivity. Its feasibility was tested in a swine cadaver model: 20 out-of-plane device-assisted punctures performed without intermittent control scans (one-step punctures) were evaluated regarding deviation to target and difference between planned and obtained angle. Thereafter, 22 device-assisted punctures were compared with 20 free-hand punctures regarding distance to target, deviation from the planned angle, number of control scans and procedure time. Differences were compared with the Mann-Whitney U-test (p 
ISSN:1364-5706
1365-2931
DOI:10.1080/13645706.2021.2002363