| 何培忠,程海凭,寿文德.超声激发振动声成像实验系统的设计[J].声学技术,2011,(1):78~83 |
| 超声激发振动声成像实验系统的设计 |
| Experiment system design for ultrasound stimulated vibro-acoustography |
| 投稿时间：2010-02-26 修订日期：2010-05-30 |
| DOI： |
| 中文关键词: 振动声成像 共焦换能器 差频波 超声激发声发射 |
| 英文关键词: vibro-acoustography confocal transducer difference frequency wave ultrasound stimulated acoustic emission(USAE) |
| 基金项目:江苏省高校自然科学研究计划项目(08KJB140010);上海医疗器械高专科研启动项目 |
|
| 摘要点击次数: 1599 |
| 全文下载次数: 1035 |
| 中文摘要: |
| 根据超声激发振动声成像的基本原理,设计并构建一个能获得振动声图像的实验系统。该系统由高频信号部分、超声发射及传播部分、低频信号处理和计算机处理与控制等四部分构成。实验表明,该系统能获得生物仿体或软组织内刚性物体的振动声图像,为进行生物组织的振动声成像研究提供了基础;通过采用更高灵敏度的低频水听器和改善共焦换能器的分辨力,可进一步提高成像质量。 |
| 英文摘要: |
| According to the basic principle of ultrasound stimulated vibro-acoustography,an experiment system of vibro-acoustogram has been designed and constructed.The system consists of four parts: high-frequency signal generator,ultrasound emitting and transmitting part,low-frequency signal processing part and computer processing & controlling part.The experimental result indicates that the vibro-acoustogram of rigid body inside the soft tissue or tissue phantom can be obtained by the system.So the system will give some help to the study of vibro-acoustography in tissue.Furthermore,the imaging quality of the system may be improved by using the hydrophone with higher sensitivity and the confocal transducer with better resolution. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
