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DOI: 10.1148/radiol.2251011133
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(Radiology 2002;225:277-282.)
© RSNA, 2002

Technical Developments

Robotically Driven Interventions: A Method of Using CT Fluoroscopy without Radiation Exposure to the Physician1

Stephen B. Solomon, MD, Alexandru Patriciu, Mark E. Bohlman, MD, Louis R. Kavoussi, MD and Dan Stoianovici, PhD

1 From the Department of Radiology (S.B.S., M.E.B.) and James Buchanan Brady Urological Institute (S.B.S., A.P., L.R.K., D.S.), Johns Hopkins Medical Institutions, Jefferson Building, Rm 173, 600 N Wolfe St, Baltimore, MD 21287; and Department of Mechanical Engineering, Johns Hopkins University, Baltimore, Md (A.P., D.S.). Received June 29, 2001; revision requested August 20; revision received December 3; accepted January 7, 2002. Supported in part by National Science Foundation Cooperative Agreement EEC 9731478, Engineering Research Center for Computer-Integrated Surgical Systems and Technology; and National Cancer Institute grant 1R21CA088232-01A1. Address correspondence to S.B.S. (e-mail: ssolomo@jhmi.edu).

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.

© RSNA, 2002

Index terms: Computed tomography (CT), guidance, 70.12119 • Computed tomography (CT), radiation exposure, 70.12119 • Fluoroscopy, technology • Phantoms • Radiations, exposure to patients and personnel, 70.12119 • Radiations, measurement, 70.12119




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