MAPPING AND CHARACTERIZATION OF CAVITATION ACTIVITY

摘要

Apparatus for locating bubbles in a subject comprises a plurality of pressure wave detectors arranged to operate as passive detectors to generate output signals in response to the receipt of pressure waves generated at a source comprising at least one bubble, and processing means arranged to receive signals from the detectors and to determine from the signals the position of the source.

主权项

1. Apparatus for locating a source of pressure waves, the source being located at a position in a subject, the source comprising at least one bubble, the apparatus comprising a pressure wave transducer configured to generate pressure waves at a generation frequency to generate cavitation including the at least one bubble, an array of pressure wave detectors configured to operate as passive detectors to generate output signals in response to the receipt of the pressure waves generated at the source over a broadband range of frequencies including harmonic components at harmonics of the generation frequency, and a processor configured to:
receive the output signals from the detectors; and determine from the signals the position of the source, following a removal of the harmonic components using filtering.