基于红外热成像的高强度聚焦超声相控特性测量方法  

Measurement of Phase-controlled Characteristics of HIFU Based on Infrared Thermal Imaging

作　　者：张光汉 白景峰[1,2] 

机构地区：[1]上海交通大学生物医学工程学院生物医学仪器研究所,上海市200030 [2]上海交通大学Med-X研究院,上海市200030

出　　处：《中国医疗器械杂志》2017年第2期103-106,共4页Chinese Journal of Medical Instrumentation

摘　　要：相控聚焦超声的三维热场分布是衡量高强度聚焦超声相控换能器性能的关键指标,利用红外热成像技术定性测量相控聚焦超声换能器的声热场特性取得了显著进展。该文提出一种基于红外热成像测量相控聚焦超声相控特性的方法,并建立一套完整的测量系统。研究结果表明,该文提出的测量系统可以有效地测量相控聚焦超声换能器的相控特性,对相控聚焦超声声场特性测量的标准化具有重要意义。Phase-Controlled high intensity focused ultrasound 3D temperature distribution is the key indicator for measuring the efficiency of HIFU transducer. Considerable progress has been achieved in the use of infrared （IR） imaging techniques for qualitative mapping of acoustic and thermal field of high intensity focused ultrasound （HIFU） transducers. This article proposes a method to measure phased-controlled characteristics of HIFU based on infrared thermal imaging and establishes a whole measurement system to make the method more quantitative and reliable. The result shows that the proposed measurement system is able to measure pHIFU characteristics rapidly and precisely, which will be of great significance in standardizing the measurement of pHIFU acoustic field.

关 键 词：相控聚焦超声 聚焦声场测量系统 红外热成像 相控特性测量 

分 类 号：TB559[理学—物理]