Biopsy navigator: a smart haptic interface for interventional radiological gestures
نویسندگان
چکیده
The VRAI group at EPFL is conducting research in the fields of virtual reality and haptics (force-feedback) for medical applications. In particular, we have developed visualization techniques for medical images from various sources, and a high-performance haptic interface. In this paper, we present a technique that combines visualization with haptic rendering in order to provide real-time assistance to medical gestures. To demonstrate this technique, we have developed the BiopsyNavigator, a system that provides haptic feedback to the surgeon using patient specific data. Before the biopsy, it provides the surgeon with the ability to simulate the intervention. During the biopsy, haptic feedback is used to first help the surgeon to find the target and to define the optimal trajectory, then to physically guide the surgical gesture along the chosen path. Finally, haptic information is used to indicate that the target has been reached. Future developments will include real-time update of the patient model from various sources, including C-arm mounted CT and ultrasonic probes.
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