Abstract: We evaluate the use of available wireless communication techniques in market for a portable Positron Emission Tomography(PET) system.For Wi-Fi,as well known as IEEE 802.11,our result shows that the total communication rate approximates the sum of data rates transferring through 3 independent channels in a limited space room.By use of a router implemented with 802.11g,98.21% and 34.66% average channel efficiencies are achieved for independent channels and non-independent channels,respectively.The results show the potential use of the Wi-Fi technique for a high-speed data communication in a PET system.We also discuss the potential use of Ultra Wide Band,Bluetooth,and Zigbee as a wireless communication implementation for a portable PET system.