用于乳腺电阻抗扫描成像手持式检测探头的标准化定位方法设计  

Design of a standardized positioning method for handheld detection probe of electrical impedance scanning of the breast

作　　者：张坤 季振宇 ZHANG Kun;JI Zhenyu(Department of Medical Engineering,Xijing 986 Hospital,Xi'an 710054,China;Department of Medical Electronic Engineering,School of Military Biomedical Engineering,Air Force Medical University,Xi'an 710032,China)

机构地区：[1]空军第九八六医院医学工程科,陕西西安710054 [2]空军军医大学军事生物医学工程学系医学电子工程学教研室,陕西西安710032

出　　处：《空军军医大学学报》2023年第5期407-411,共5页Journal of Air Force Medical University

基　　金：国家自然科学基金面上项目(81671846)。

摘　　要：目的研究电阻抗扫描成像(EIS)手持式检测探头的标准化定位方法,以降低乳腺EIS检查中因人为操作探头而造成的检测位置差异,从而提高病变区多次检测图形对比分析的准确性。方法本文设计了包括探头、参考标尺、探头识别标签、摄像装置和计算机的定位系统,通过图像增强、图像分割、特征提取以及图像识别技术获取乳房特定参数信息。通过探头上的色标对检测实时位置进行判定,经坐标变换获得准确的探头姿态和位置,引导操作员将探头移动到目标位置。结果经测试,本系统可实现对EIS检测目标区阻抗信息和位置信息的同步获取,为EIS检查时提供精确的探头体表定位信息。结论通过本方法可以有效确保在多次EIS检查时,探头对目标区的定位信息保持一致,实现检测的标准化,提高乳腺癌诊断的准确率。Objective To study a standardized positioning method for handheld detection probe of electrical impedance scanning(EIS)to reduce the difference of detection positions caused by manual operation of the probe in breast EIS examination,so as to improve the precision of the comparative analysis of multiple detection graphics in the lesion areas.Methods In this paper,a positioning system including probe,reference scale,probe identification label,camera and computer was designed,and breast-specific parameter information was obtained through image enhancement,image segmentation,feature extraction and image recognition technology.The real-time position of the detection was determined by the color code on the probe,the accurate attitude and position of the probe were obtained through coordinate transformation,and the operator was guided to move the probe to the target position.Results After testing,the system could realize the synchronous acquisition of impedance information and position information of EIS detection target area and provide accurate probe body surface positioning information for EIS examination.Conclusion This method can effectively ensure that the positioning information of the probe to the target area is consistent during multiple EIS examinations,realize the standardization of detection,and improve the accuracy of breast cancer diagnosis.

关 键 词：乳腺 电阻抗扫描 探头 标准化定位 

分 类 号：R318[医药卫生—生物医学工程] TP391.41[医药卫生—基础医学]