| Ultrasound imaging and evaluation of lesion induced by High Intensity Focused Ultrasound |
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| 作者姓名： | ZHONG Hui WAN Mingxi JIANG Yifeng WANG Supin |
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| 作者单位： | The Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Department of Biomedical Engineering, School of Life Science and Technology, Xi＇an Jiaotong University Xi＇an 710049 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China (30370403)
the National Science Foundation for Distinguished Youth Scholar (69925101)
the Natural Science Foundation of Xi'an Jiaotong University program (2000-573011) |
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| 摘 要： | The present study was to investigate the differential imaging method for detecting HIFU (High Intensity Focused Ultrasound)-induced lesions and the estimation of variation of attenuation for lesion evaluation with log spectral difference algorithm. Experiment results of bovine muscle and liver in vitro were acquired. Several algorithms for lesion detection - Absolute Difference (AD), Sum Absolute Differences (SAD) and Sum Squared Differences (SSD) - were analyzed with several window sizes and threshold values. Then three attenuation parameters were compared to evaluate the degree of tissue damage. It was found that variation of the mean attenuation △α was an effective parameter to evaluate lesions.
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| 关 键 词： | 超声成像 诱导损害 高强度聚焦超声 评价 |
| 收稿时间： | 2005-06-01 |
| 修稿时间： | 2005-06-012005-07-21 |
Ultrasound imaging and evaluation of lesion induced by High Intensity Focused Ultrasound |
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| Authors: | ZHONG Hui WAN Mingxi JIANG Yifeng WANG Supin |
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