Robotically driven interventions: a method of using CT fluoroscopy without radiation exposure to the physician
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Updated: Sep 29, 2026

Non-fluoroscopic Catheter Tracking for Fluoroscopy Reduction in Interventional Electrophysiology
Published on: May 26, 2015
Stephen B Solomon1, Alexandru Patriciu, Mark E Bohlman
1Department of Radiology and James Buchanan Brady Urological Institute, Johns Hopkins Medical Institutions, Jefferson Building, Rm 173, 600 N Wolfe St, Baltimore, MD 21287. ssolomo@jhmi.edu
Abstract:
Radiation exposure to physicians' hands during interventional procedures with computed tomography (CT) fluoroscopic guidance may be high. A robot was developed that could hold, orient, and advance a needle, with CT fluoroscopic guidance. This robot could be either computer or joystick controlled. Twenty-three robotically guided percutaneous interventions were performed without complication. Physician radiation exposure was negligible during the CT fluoroscopy-guided procedures.
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