Application of high-intensity focused ultrasound (HIFU) in therapeutic medicine has started in the 1950s for the treatment of Parkinson’s disease. With the development of medical diagnosis, such as ultrasound imaging and magnetic resonance imaging (MRI), automatic control, imaging processing and electrical technology, extracorporeal and intrarectal HIFU systems have been developed for clinical ...

Introduction In this work, a method for the optimization of volumetric MR-guided high intensity focused ultrasound (HIFU) ablations is presented. While commonly MRguidance of thermal therapies is based on temperature control the on-line assessment of the thermal dose has been suggested to determine the therapy endpoint [1]. Therefore, we propose to monitor the thermal dose [2] of the treated ti...

High Intensity Focused ultrasound (HIFU) is a non-invasive cancer therapy that makes use of the mainly thermal effects of ultrasound to destroy tissue. In order to achieve reliable treatment planning, it is necessary to characterise the ultrasound source (transducer) and to understand how the wave propagates in tissue and the energy deposition in the focal region. This novel exploratory study i...

High Intensity Focused Ultrasound (HIFU) has been emerging as a new and effective modality in non-invasive thermal ablation for cancers and solid tumours. Although a theoretical model is available for calculating thermal field and the consequent lesion production, its computation is too time-consuming (~ 1 day) for HIFU treatment planning on the site. In this study, several approximations were ...

Early embryonic mortality can be monitored using various techniques and probably the most accurate one is ultrasonography (USG). Since the widespread implementation of transrectal USG for reproductive research in cattle (Griffin and Ginther, 1992), several studies have reported rates of embryonic mortality during early gestation under field conditions. Vasconcelos et al. (1997) characterized em...

Methods Multiparametric MRI combined with both systematic and fusion biopsy is being utilized more frequently worldwide to select patients for focal therapy. The ability to effectively ablate prostate cancer with transrectal HIFU has been demonstrated by numerous publications to date. Early results from focal HIFU series suggest that side effect profiles such as stricture, erectile dysfunction,...

High intensity focused ultrasound (HIFU) has been used noninvasively for therapeutic applications. Previous studies have shown that HIFU when targeted on fetal rat and mice bones resulted in hemorrhage. Hemorrhage occurrence and area were found to correlate with total equivalent energy (i.e. product of energy density, number of pulses and volume of the focal region) and surface power (i.e. prod...