| A novel method for evaluating tissue inhomogeneity in elastography |
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| 作者姓名： | BAI Peirui WAN Mingxi WANG Supin ZHANG Dachun DANG Jun |
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| 作者单位： | Department of Biomedical Engineering, Xi'an Jiaotong University, Key Laboratory of Biomedical Information Engineering of Ministry of Education, Xi'an 710049, China |
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| 摘 要： | Based on the detection of differential Rényi information (DRI) of segmented pre- and post-compression radio-frequency (RF) echo signals, a novel method for evaluating tissue inhomogeneity in elastography prior to the cross-correlation operation is proposed. In vitro experiments were carried out to corroborate the performance of the DRI method. Experimental results illustrate that valuable insights into local tissue inhomogeneity can be obtained through analyzing the DRI curves of the echo segments, which can provide information to aid the study of strain estimation algorithm in elastography.
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| 关 键 词： | Rényi information |
A novel method for evaluating tissue inhomogeneity in elastography |
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| BAI Peirui,WAN Mingxi,WANG Supin,ZHANG Dachun,DANG Jun.A novel method for evaluating tissue inhomogeneity in elastography[J].Progress in Natural Science,2006,16(5):474-479. |
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| Authors: | BAI Peirui WAN Mingxi WANG Supin ZHANG Dachun DANG Jun |
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| Institution: | Department of Biomedical Engineering, Xi'an Jiaotong University, Key Laboratory of Biomedical Information Engineering of Ministry of Education, Xi'an 710049, China |
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| Abstract: | Based on the detection of differential Rényi information (DRI) of segmented pre- and post-compression radio-frequency (RF) echo signals, a novel method for evaluating tissue inhomogeneity in elastography prior to the cross-correlation operation is proposed. In vitro experiments were carried out to corroborate the performance of the DRI method. Experimental results illustrate that valuable insights into local tissue inhomogeneity can be obtained through analyzing the DRI curves of the echo segments, which can provide information to aid the study of strain estimation algorithm in elastography. |
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| Keywords: | ultrasound elastography tissue compression tissue inhomogeneity time-frequency analysis |
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