[A new mechanically manipulated unit for CT-guided biopsy]

To avoid radiation exposure to the radiologist during biopsy with CT fluoroscopy, we have developed a new system for CT-guided biopsy. The system is composed of three parts, a needle holder, arm and support. The automatic biopsy needle is mechanically remote controlled by flexible shafts with four functions. In the phantom study and the clinical trial, we were able to biopsy nodules under remote control with this equipment, eliminating radiation exposure to the radiologist. Although a few refinements of the system are necessary, it may enable us to perform CT-guided biopsy more safely and easily.