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This paper considers resolving the location of a foreign object in the brain without the removal of the skull bone by detecting and processing the acoustic waves emitted from the foreign object modeled as point source. The variable thickness of the skull bone causes propagation acoustic waves to be scattered in such a manner that the acoustic wave undergoes a variable time delay relative to its entry...
A new method for 2D visualization of foreign objects in the brain tissue, such as bone fragments, bullets, pieces of shrapnel, etc. is presented. The method uses acoustic ray tracing approach to model the propagation of ultrasonic waves through the skull bone and the brain tissue. The mathematical theory of the method, the preliminary results of computer modeling and laboratory testing are presented...
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