Dr. Yeung asked me to go to a seminar today about Exablate Focus Ultrasound...  quite interesting..  basically people invent a machine that use ultrasound to generate high temperature energy that destroy tumor cells inside the body therefore no surgery is needed for most of the patients with tumors in the brain, liver, kidney, bone..etc.  (which is quite interesting)...  the machine just need MRI images to plan pre-surgical operation plan and just need around 4 hours to finish killing the targeted tumor cells..  lucky to have a chacne to know these high tech. stuff...  ^__^