HIFU辐照肌肉组织后B超灰度变化与凝固性坏死形成规律研究
[Abstract]:Objective High intensity focused ultrasound (high intensity focused ultrasound, HIFU) has been used in the treatment of liver cancer, breast cancer, osteosarcoma and so on. In the course of treatment, HIFU can cause coagulation necrosis in the irradiated area (that is, target area) and enhance the gray level of the corresponding B-mode ultrasound image, thus realizing the real-time monitoring of the treatment. However, there are few reports on the quantitative relationship between B-ultrasound gray value and coagulation necrosis volume. In this study, HIFU irradiation was carried out on rabbit muscle tissue to observe the volume of coagulation necrosis corresponding to different gray values, and to explore the law of gray value and coagulative necrosis volume. The experiments were carried out in different biological tissues (goat muscles). At the same time, in the application of HIFU, it is observed that sometimes there are gray changes in the target area, but there is no coagulation necrosis in the tissue. In view of this phenomenon, we have also carried out an experimental study. Materials and methods 1 High intensity focused ultrasound (HIFU) irradiated rabbit muscle tissue with B-ultrasound gray value and coagulative necrosis formation rule 1.1 correlation between B-ultrasound gray value and coagulative necrotic volume after high intensity focused ultrasound irradiation in rabbit muscle tissue: a study of 60 New Zealand rabbits According to the irradiation time, the white rabbits were divided into 0 sL 18 sL 30 sL 40 s10 50 s10 60 s,
【学位授予单位】:重庆医科大学
【学位级别】:硕士
【学位授予年份】:2006
【分类号】:R312
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