| Monitoring Thermal Coagulation with Ultrasonic Textures |
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| 作者姓名： | 阳维 张素 陈亚珠 陈磊 胡兵 马维银 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);上海市科委资助项目 |
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| 摘 要： | The feasibility of using B-mode ultrasound image textures and pattern recognition technique to characterize the thermal coagulation in vitro during radiofrequency ablation was investigated. The changes of ultrasonic textures in the different regions of samples varied with the heating time in the in-vitro experiments, which would result in that the coagulated and noncoagulated regions of tissue had different ultrasonic textures. Using support vector machine to extract the ultrasonic texture features and characterize the state of tissue, the size and boundaries of thermal lesions could be detected and measured more exactly than only using the gray scale information of B-mode ultrasound image. The proposed method would be applied to the image-guided radiofrequency ablation (IGRA) procedure for monitoring the thermal coagulation.
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Monitoring Thermal Coagulation with Ultrasonic Textures |
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| YANG Wei,ZHANG Su,CHEN Ya-zhu,CHEN Lei,HU Bing,MA Wei-yin.Monitoring Thermal Coagulation with Ultrasonic Textures[J].Journal of Shanghai Jiaotong university,2007,12(4):530-536. |
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| Authors: | YANG Wei ZHANG Su CHEN Ya-zhu CHEN Lei HU Bing MA Wei-yin |
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| Abstract: | The feasibility of using B-mode ultrasound image textures and pattern recognition technique to characterize the thermal coagulation in vitro during radiofrequency ablation was investigated. The changes of ultrasonic textures in the different regions of samples varied with the heating time in the in-vitro experiments, which would result in that the coagulated and noncoagulated regions of tissue had different ultrasonic textures. Using support vector machine to extract the ultrasonic texture features and characterize the state of tissue, the size and boundaries of thermal lesions could be detected and measured more exactly than only using the gray scale information of B-mode ultrasound image. The proposed method would be applied to the image-guided radiofrequency ablation (IGRA) procedure for monitoring the thermal coagulation. |
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| Keywords: | thermal lesion ultrasonic texture radiofrequency ablation support vector machine |
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