| Experimental system for perfusion imaging and time-intensity processing based on ultrasound contrast agent |
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| 引用本文： | 宋延淳 万明习 吴方刚 樊华 宗瑜瑾. Experimental system for perfusion imaging and time-intensity processing based on ultrasound contrast agent[J]. 中国人民解放军军医大学学报, 2006, 21(1): 38-41 |
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| 作者姓名： | 宋延淳 万明习 吴方刚 樊华 宗瑜瑾 |
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| 作者单位： | 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 ,China |
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| 摘 要： | Objective： To present a self-developed experimental system for basic studies of blood perfusion imaging and time-intensity evaluating based on ultrasound contrast agent. Methods ： The experimental system performed the image reconstruction and time-intensity processing with radio frequency signals. The system was comprised of ultra-high speed hardware data acquisition interface and low computational cost algorithms. The self-made contrast agent ,blood mimic phantom and capillary phantom model were used to validate the experimental system. Results： The images acquired in blood phantoms with linear-array and curve-array transducers were given. The time-intensity curves corresponding to selected region of interestsequence were demonstrated. It was also shown the time-intensity based decay curves and a decay of ultrasound contrast agent under different ultrasound powers. Conclusion： Several suited from two in vitro phantom models show that the experimental system can be used to f blood perfusion and further clinical studies of microvasculature perfusion.
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| 关 键 词： | 实验室 超声检查 药剂 超声强度 |
| 收稿时间： | 2005-10-10 |
| 修稿时间： | 2005-12-20 |
Experimental system for perfusion imaging and time-intensity processing based on ultrasound contrast agent |
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| SONG Yan-chun,WAN Ming-xi,WU Fang-gang,FAN Hua,ZONG Yu-jin. Experimental system for perfusion imaging and time-intensity processing based on ultrasound contrast agent[J]. Journal of Medical Colleges of PLA(China), 2006, 21(1): 38-41 |
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| Authors: | SONG Yan-chun WAN Ming-xi WU Fang-gang FAN Hua ZONG Yu-jin |
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| Abstract: | Objective:To present a self-developed experimental system for basic studies of blood perfusion imaging and time-intensity evaluating based on ultrasound contrast agent. Methods: The experimental system performed the image reconstruction and time-intensity processing with radio frequency signals. The system was comprised of ultra-high speed hardware data acquisition interface and low computational cost algorithms. The self-made contrast agent,blood mimic phantom and capillary phantom model were used to validate the experimental system. Results: The images acquired in blood phantoms with linear-array and curve-array transducers were given. The time-intensity curves corresponding to selected region of interested from image sequence were demonstrated. It was also shown the time-intensity based decay curves and a comparison of decay of ultrasound contrast agent under different ultrasound powers. Conclusion: Several experiments resulted from two in vitro phantom models show that the experimental system can be used to basic studies of blood perfusion and further clinical studies of microvasculature perfusion. |
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| Keywords: | perfusion imaging time-intensity processing ultrasound contrast agent |
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