Robot-assisted PET-CT-MRI image fusion

A novel robot-assisted PET/CT/MRI image fusion method is presented. The robot carries the patient from one device to another automatically, securely and precisely. The images obtained in each device are fused by the robot position transformational matrix. First, a 4WD and 4WS mobile robot is introduced. Its design features are super payload capability, precise navigation and positioning, ultrasonic obstacle avoidance and Anti- magnetic. Second, the general kinematics model of the 4WD and 4WS mobile robot is presented. Several special modes are simplified from the general model, Such as ZRT mode, navigation mode and so on. At last several clinical trial of this system is introduced. The comparison result between the result of robot-assisted PET/MRI image fusion and the result of combined machine is presented. The method of the robot-assisted PET/MRI image fusion can make the process of image fusion more automatically, securely and precisely.