Framework for Exploratory Analysis of Vibroacoustic Signals Resulting from Needle-Tissue Interaction - setup for data acquisition

Minimal-invasive surgery provides patients with benefits such as fewer incisions, faster healing times, reduced postoperative pain and bleeding, minimized scarring, and shorter hospital stays. To enhance its effectiveness ultrasound imaging or magnetic resonance-based guidance systems have been developed. However, research in robotics, sensors, and medical imaging is quickly evolving often presenting new solutions to the still persisting artifact and real-time feedback issues. To test those navigation technologies specialized phantoms are needed. Currently, existing phantoms are offering small tissue-like materials variability and are made of materials not suitable for extensive testing of minimally invasive surgery technologies. In this paper, we present a preliminary study about dedicated phantom design and manufacturing process, and data collection with special attention to vibroacoustic signals for future analysis.Clinical relevance: Widely available phantoms not only serve an important part in new technology testing in an invivo environment but also allow medical doctors to practice their skills in safe conditions.