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The use of a Unimation Puma 200 robot, properly interfaced with a computerized tomographic (CT) scanner and with a probe guide mounted at its end effector for CT-guided brain tumor biopsis is discussed. Once the target is identified on the CT picture, a simple command allows the robot to move to a position such that the end-effector probe guide points toward the target. This results in a procedure faster than one using a manually adjustable frame. Probably the most important advantage, as is shown, is the improved accuracy that can be achieved by proper calibration of the robot.>
Kwoh et al. (Fri,) studied this question.