Monitoring imaging of lesions induced by high intensity focused ultrasound based on differential ultrasonic attenuation and integrated backscatter estimation

Cavitation Imaging in Tissues

“…However, the hyperechoic region might reflect integrated information, including not only cavitation bubbles but also the tissue thermal lesion, since some studies have found that echogenicity enhancement was still observed long after HIFU was performed (Seo et al 2002;Zhang et al 2009;Zhong et al 2007). Thus, differential images reflect the integral changes of a treated area, and such images can be called integral differential images.…”

Ultrasound monitoring of temperature and coagulation change during tumor treatment with microwave ablation

“…Important temperature estimation methods in clinics mainly include those based on magnetic resonance and those based on ultrasound (Wu et al, 2002;Mi et al, 2003;Guiot et al, 2004;Parmar and Kolios, 2004;Amini et al, 2005;Arthur et al, 2005aArthur et al, , 2005bMiller et al, 2005;Maleke and Konofagou, 2006;Pousek et al, 2006;Qian et al, 2006;Ren et al, 2006;Wu et al, 2006;Zhang et al, 2006;Anand et al, 2007;Zhong et al, 2007). However, for the methods based on magnetic resonance, the cost is too high, and it cannot be real time.…”

“…(3) temperature estimation based on the frequency shift and the changes of the spectral parameters caused by the change of tissue scattering space (Amini et al, 2005;Qian et al, 2006;Zhong et al, 2007); (4) temperature estimation based on intensity of backscattered echo and the energy (Arthur et al, 2005a); and (5) temperature estimation based on the video features of B-mode image (Guiot et al, 2004;Pousek et al, 2006;Zhang et al, 2006).…”

Model-Based Ultrasound Temperature Visualization During and Following Hifu Exposure

“…Temperature guidance with MR images is more reliable (Bohris et al 1999;Quesson et al 2000;Salomir et al 2000;Damianou et al 2004), but ultrasound feedback is nevertheless popular because of its low cost and simplicity of configuration (Miller et al 2004;Seip and Ebbini. 1995;Simon et al 1998;Pernot et al 2004a;Zhong et al 2008).…”