A New Ultrasound Phased Array Technique for Treat Liver Cancer Using Hyperthermia

A method is presented for calculation of the ultrasonic from NtimesN ultrasound phased array transducers to treat cancer in liver using hyperthermia treatment The analysis uses the bioheat transfer equation with tissue properties to get the temperature distribution. The synthesize method consists of simultaneously focusing of the ultrasound beam at different points uniformly distributed along the tumor periphery. It is demonstrates that by combining the multiple focusing features with the Esoudo inverse method and the new field phasing concept, typical undesired hot spots can be eliminated. Temperature distribution associated with two methods will be simulated and discussed