ArticleQuantitative imaging in medicine and surgery2025
CT-guided needle insertion with an optical navigation robot-assisted puncture system:
Article in Quantitative imaging in medicine and surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Robotic technologies have promising applications in computed tomography (CT)-guided puncture. However, nodule-surrogate models can be difficult to develop for relevant studies, and thus the accuracy of optical navigation robot-assisted puncture remains unclear. This study aims to evaluate a starch mixture (the starch group) and a copper particle nodule-surrogate model (the particle group) and to compare the accuracy of optical navigation robot-assisted puncture (the robot group) with traditional CT-guided manual puncture (the manual group) using swine liver and kidneys. Methods: The study was approved by the institutional animal care and use committee. Results: In the first experiment, all nodule surrogates were easily visible on the CT images. However, other aspects of the starch group (one starch overflow, one starch dispersion event, and one air embolism) were inferior to those of the particle group. In experiment 2, the accuracy of needle insertion in the robot group (3.71±1.34 mm) was higher than in the manual group (11.89±9.59 mm) (P<0.001). The needle insertion time and level of radiation exposure were superior in the robot group compared to the manual group. Complications were similar between the two groups. Conclusions: The particle method may be superior to the starch method. The robot group was more accurate than the manual group, and the occurrence of complications was similar.
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