Research on Noninvasive Temperature Estimation Technology Based on Texture Features of Ultrasound Images for RFA
Abstract: In tumor hyperthermia, effect is directly related to temperature monitoring during the therapy. Ultrasound can be used as one of the most important methods for noninvasive temperature meas-urement of tissues in hyperthermia. In this study, a noninvasive temperature estimation method for hyperthermia based on ultrasound image with wavelet transform and texture analysis was pro-posed. Radiofrequency ablation (RFA) was performed on animal kidneys in vitro, and ultrasound images and temperature data were collected in real time. With wavelet transform of subtraction images before and after ablation, texture features such as energy and hybrid entropy extracted from gray-level gradient co-occurrence matrix of the processed ultrasound images were linear fitted with temperature. Results demonstrated that texture features hybrid entropy obtained from im-ages processed with proposed method had high linear correlation with temperature, and verified the feasibility of the proposed approach of temperature monitoring during RFA.
文章引用: 陈 铭 , 赵兴群 , 姚林方 (2021) 基于超声图像纹理特征的RFA治疗无损测温技术研究。 生物医学， 11， 31-39. doi: 10.12677/HJBM.2021.112005
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