MONITORING AND FOLLOW UP OF HIFU LESIONS BY ULTRASOUND

Although it is possible to both measure temperature and monitor the damage caused by HIFU treatment sessions with magnetic resonance imaging, a number of studies have been carried out proposing an ultrasound solution. Conventional B-mode ultrasound seems to be valid, but cannot be applied to all organs, and the hyperechogenic areas often observed during HIFU treatments do not necessarily and exactly correspond to the thermal damage. The aim of this paper is to summarize recent work in this field. The various techniques have been divided into three main groups, characterizing the lesions by measuring the acoustic properties, mechanical properties or vascularization.