期刊论文

Respiratory motion gating method based on liver contrast-enhanced ultrasound images of single mode

中文

医疗卫生装备

1003-8868

2014

35

11

15-18,64

10.7687/J.ISSN.1003-8868.2014.11.015

广州军区武汉总医院课题（YZ201424） 国家青年科学基金（81401474） 湖北省教育厅青年创新基金（Q20131706）

本校为第一机构

目的:针对单模造影图像的成像特点进行呼吸运动校正方法研究,减小单模肝超声造影图像序列定量分析中呼吸运动的影响.方法:采用图像门控法与模板图像迭代配准法对单模肝造影图像序列配准,在10个肝细胞癌超声造影病例上初步探索,提出呼吸运动校正方法的可行性,并验证该方法的有效性.结果:校正后的肝超声造影图像序列所生成的加权过渡时间和参数图的质量比校正前明显提高,校正后帧选择的图像与模板图像的平均相关系数比校正前平均增加0.26±0.15,校正后的图像序列生成的时间-强度曲线拟合的偏差值比校正前平均减少34.47±10.9.结论:该校正方法能提高单模肝超声造影图像序列定量分析的准确性,从而有...

Objective To reduce the effects of respiratory motion in the quantitative analysis based on liver contrast-enhanced ultrasound（CEUS） image sequences. Methods The image gating method and the iterative registration method using model image were adopted to register liver contrast-enhanced ultrasound image sequences of single mode. The feasibility of the proposed respiratory motion correction method was explored preliminarily using ten hepatocellular carcinomas CEUS cases, and the effectiveness of this method was demonstrated. Results After corre...