奇异值分解滤波对超声造影超微血管成像图像质量的影响  

Impact of singular value decomposition filtering on imaging quality of superb microvascular imaging based on contrast-enhanced ultrasound

作　　者：程慧[1,2] 胡海曼 雷炳松 王琦 李楠[1,2] 叶华容[1] CHENG Hui;HU Haiman;LEI Bingsong;WANG Qi;LI Nan;YE Huarong(China Resources&Wisco General Hospital,Wuhan University of Science and Technology,Wuhan 430080,China;School of Medicine,Wuhan University of Science and Technology,Wuhan 430081,China;School of Electrical and Electronic Engineering,Hubei University of Technology,Wuhan 430068,China)

机构地区：[1]武汉科技大学附属华润武钢总医院,湖北武汉430080 [2]武汉科技大学医学院,湖北武汉430081 [3]湖北工业大学电气与电子工程学院,湖北武汉430068

出　　处：《中国医学影像技术》2023年第1期90-93,共4页Chinese Journal of Medical Imaging Technology

基　　金：湖北省卫生健康委员会联合基金面上项目(WJ2019H179);武汉市卫生健康委员会面上项目(WX21C07)。

摘　　要：目的评价奇异值分解(SVD)滤波对超声造影(CEUS)超微血管成像(SMI)图像质量的影响。方法对1例疑诊肝血管瘤患者行常规二维超声及CEUS检查,对图像进行SVD滤波处理,根据算法获取基于CEUS的SMI图像;比较经SVD滤波处理的CEUS SMI与二维声像图及原始CEUS图像的信噪比(SNR)、对比组织比(CTR)及分辨率等参数的差异。结果相比二维声像图及原始CEUS图像,经SVD滤波处理的CEUS SMI可显示更多微血管网络,并支持测量血管间的距离。二维声像图、CEUS及CEUS SMI的SNR分别为7.56、17.65及22.43 dB,CTR分别为1.12、7.56及16.34 dB;CEUS SMI的SNR及CTR明显高于二维声像图及CEUS。结论SVD滤波可提升肝脏CEUS SMI图像质量。Objective To observe the impact of singular value decomposition(SVD)filtering on imaging quality of superb microvascular imaging(SMI)based on contrast-enhanced ultrasound(CEUS).Methods Conventional two-dimensional ultrasound and CEUS examination was performed in a patient with suspected liver hemangioma.The images were as processed with SVD filtering,and SMI images based on CEUS were acquired via the algorithm.Then images of CEUS SMI after SVD filtering processing were compared with those of two-dimensional ultrasound and original CEUS,and the parameters,including signal-to-noise ratio(SNR),contrast-to-tissue ratio(CTR)and resolution were compared among 3 kinds of images.Results Compared with two-dimensional ultrasound and original CEUS,CEUS SMI images clearly showed more microvascular network and supported measuring intervascular distances after SVD filtering processing.SNR of two-dimensional,CEUS and CEUS SMI was 7.56,17.65 and 22.43 dB,respectively,CTR was 1.12,7.56 and 16.34 dB,respectively,of CEUS SMI were both significantly improved compared with those of two-dimensional and CEUS.Conclusion SVD filtering could improve imaging quality of CEUS SMI of liver.

关 键 词：肝肿瘤 超声检查 奇异值分解 

分 类 号：R735.7[医药卫生—肿瘤] R445.1[医药卫生—临床医学]