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. Author manuscript; available in PMC: 2011 Nov 7.
Published in final edited form as: Phys Med Biol. 2010 Oct 12;55(21):6395–6410. doi: 10.1088/0031-9155/55/21/004

Figure 1.

Figure 1

Treatment of multiple independent zones using electronic plus mechanical steering. The proposed design for optimal treatment is as follows. Individual focal spots within each treatment zone are consecutively treated in the order shown via fast electronic steering (inset, upper right). When the peak temperature in a given treatment zone reaches a pre-determined level, mechanical steering is used to move to a new treatment location at some distance. Continued treatment of the first zone occurs only after the temperature there has returned to ambient. Cycling through all treatment zones continues until each focal spot has received the full allotment of HIFU pulses.