SYSTEM AND METHOD FOR MEASURING AND CORRECTING ULTRASOUND PHASE DISTORTIONS INDUCED BY ABERRATING MEDIA
摘要
A system and method for efficiently transmitting and receiving focused ultrasound through a medium, such as bone, is provided. The focal region of the focused ultrasound is iteratively updated to provide an improved focus through the medium. This method may be carried out using a transducer assembly that includes two or more transmit arrays each operating at a different frequency. An initial focus is set and updated by delivering focused ultrasound with a lower frequency transmit array. The phase corrections determined in the first iteration are applied to subsequently higher frequency transmit arrays and received signals, and the process repeated until a desired focus or image resolution is achieved.
申请公布号
WO2014138050(A1)
申请公布日期
2014.09.12
申请号
WO2014US20279
申请日期
2014.03.04
申请人
SUNNYBROOK HEALTH SCIENCES CENTRE;HYNYNEN, KULLERVO, HENRIK;O'REILLY, MEAGHAN, ANNE