Meeting Banner
Abstract #4126

Mechanical Focal Spot Scanning with a Robotic Assistance System for MRgFUS Therapy

Axel Joachim Krafft1, Jrgen Walter Jenne2,3, Florian Maier1, Peter E. Huber3, Wolfhard Semmler1, Michael Bock1

1Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany; 2Mediri GmbH, Heidelberg, Germany; 3Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany

Magnetic Resonance imaging guided Focus Ultrasound Surgery (MRgFUS) is a highly precise method for non-invasive tissue ablation. Existing MRgFUS systems are mostly integrated into the patient table of the MR scanner. The objective of this ongoing project is to establish an MRgFUS therapy unit combining a commercial robotic assistance system with a fixed focus transducer as add-on. The combined systems targeting precision was evaluated during focal spot scanning procedures. The system proved to allow for accurate and highly flexible focus positioning, and thus, might enable novel FUS treatment access.