基于脉冲回波的超声诊断设备探头性能检测方法  

Detection method for the performance of ultrasound probes based on pulse echo

作　　者：王玉[1] 张长鑫 赵菁[1] 李广涵 周闻博[1] 董欣媛[1] Wang Yu;Zhang Changxin;Zhao Jing;Li Guanghan;Zhou Wenbo;Dong Xinyuan(Department of Medical Engineering,China-Japan Friendship Hospital,Beijing 100029,China;Department of Ultrasound and Diagnosis,China-Japan Friendship Hospital,Beijing 100029,China)

机构地区：[1]中日友好医院医学工程处,北京100026 [2]中日友好医院超声诊断科,北京100026

出　　处：《中国医学装备》2025年第3期157-159,共3页China Medical Equipment

摘　　要：超声探头是超声设备中最重要的配件,其以压电振子为核心部件,能够完成超声波发射和回波接受。深入了解探头阵元的工作特性,是使用者准确判断探头运行状态的重要前提。本研究利用脉冲回波技术,对超声探头的阵元进行灵敏度和电容检测。收集中日友好医院2005年至2018年购置的60把超声探头检测数据,其中75%的探头存在耦合剂残留,80%的探头存在压痕或者外皮受损;漏电流检测中1把探头存在漏电流过高的问题,占总数的1.7%;阵元检测中探头阵元部分损坏2把,占总数的3.4%,探头损坏无法使用6把,占总数的10.2%。通过对超声诊断设备进行预防性检测,有助于建立超声质量控制体系,提供超声诊断设备使用的可靠性分析数据,为医院设备部门和临床使用科室提供决策依据。The ultrasound probe is the most important accessory in ultrasound equipment,which adopted the piezoelectric vibrator as its core component,and it can complete ultrasonic emission and receiving echoes.A deep understanding for the operational characteristics of the probe's array elements is important premise that user can accurately judge the running situation of the probe.This study employed pulse-echo technique to detect sensitivity and capacitance of the array elements of ultrasonic probe.The detected data of 60 probes at China-Japan Friendship Hospital were collected,and 75%of the 60 probes existed residual couplant,and 80%of them existed indentation or damage to the outer skin.The tested results of leakage current indicated that 1 probe(1.7%)existed excessively high leakage current.In test for array elements,2 probes(3.4%)displayed partial damage at array elements,and 6 probes(10.2%)were irreparably damaged.The preventive test for the diagnostic equipment with ultrasound is helpful to establish a quality control system for ultrasound,and to provide analysis materials with reliability in using diagnostic equipment with ultrasound,and to also provide decision-making basis for equipment departments and clinical department of using equipment in hospital.

关 键 词：超声换能器 脉冲回波 漏电流 阵元检测 性能评估 

分 类 号：R445.1[医药卫生—影像医学与核医学]