TITLE:
Computed Tomography Guided Percutaneous Liver Biopsy Using a Robotic Assistance Device—A Corpse Study
AUTHORS:
Boris Schulz, Katrin Eichler, Firas Al-Butmeh, Claudia Frellesen, Christoph Czerny, Thomas Vogl, Stephan Zangos
KEYWORDS:
Interventional Radiology, Robotic Assistance, Needle Biopsy, Radiation Dose
JOURNAL NAME:
Open Journal of Radiology,
Vol.5 No.2,
June
11,
2015
ABSTRACT: Purpose:
To investigate a robot assistance device for CT-guided percutan liver biopsy. Materials
and Methods: The liver of a corpse was equipped with target dummies. Four
radiologists used a 16 G needle to perform biopsy of the target region in
standard free hand technique and then used a robot system which allowed
planning and aligning the trajectory path. Accuracy in terms of needle tip
deviation, and time efficiency and radiation exposure in terms of effective dose
for the radiologists were measured. Results: For in plane procedures, there was
no significant benefit in accuracy when using the robot versus standard
technique (4 mm vs. 5.6 mm, p = 0.11); timely effort was worse (443 sec vs. 405
sec, p = 0.64). For angulated punctures, a needle tip of 3.7 mm was measured by
using the robotic device (vs. 10.8 mm, p