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中华普通外科学文献(电子版) ›› 2018, Vol. 12 ›› Issue (02) : 106 -110. doi: 10.3877/cma.j.issn.1674-0793.2018.02.008

所属专题: 文献

论著

肝脏局灶性病变的实时三维超声造影成像质量的影响因素分析
卢颖1, 黄光亮1, 郑艳玲1, 刘保娴1, 陈勉妮1, 谢晓燕1,()   
  1. 1. 510080 广州,中山大学附属第一医院超声科 中山大学超声诊断与介入超声研究所
  • 收稿日期:2017-05-22 出版日期:2018-04-01
  • 通信作者: 谢晓燕
  • 基金资助:
    国家自然科学基金资助项目(81501493,81530055)

Image quality of dynamic three-dimensional contrast-enhanced ultrasonography in focal liver lesions:an analysis of influencing factors

Ying Lu1, Guangliang Huang1, Yanling Zheng1, Baoxian Liu1, Mianni Chen1, Xiaoyan Xie1,()   

  1. 1. Department of Medical Ultrasonic, Institute of Ultrasonic Diagnosis and InterventionalUltrasound, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
  • Received:2017-05-22 Published:2018-04-01
  • Corresponding author: Xiaoyan Xie
  • About author:
    Corresponding author: Xie Xiaoyan, Email:
引用本文:

卢颖, 黄光亮, 郑艳玲, 刘保娴, 陈勉妮, 谢晓燕. 肝脏局灶性病变的实时三维超声造影成像质量的影响因素分析[J]. 中华普通外科学文献(电子版), 2018, 12(02): 106-110.

Ying Lu, Guangliang Huang, Yanling Zheng, Baoxian Liu, Mianni Chen, Xiaoyan Xie. Image quality of dynamic three-dimensional contrast-enhanced ultrasonography in focal liver lesions:an analysis of influencing factors[J]. Chinese Archives of General Surgery(Electronic Edition), 2018, 12(02): 106-110.

目的

探讨实时三维超声造影(4D-CEUS)成像质量的影响因素。

方法

回顾性分析2013年6月至2014年3月经病理及临床确诊的151例肝脏局灶性病变(FLLs)患者的影像资料,对其4D-CEUS成像质量进行评分并分析影响成像质量的因素。

结果

(1)4D-CEUS检查时慢推造影剂组得到的纯动脉相最长,平均时间为(5.17±1.03)s,成像质量优于常规团助法(统计值88.868,P=0.000)。(2)151例FLLs的4D-CEUS动脉期成像质量评价1级82例(54.3%),2级17例(11.3%),3级25例(16.6%),4级27例(17.9%)。151例病变呈高、等、低或无增强者分别有119例(78.8%)、6例(4.0%)和26例(17.2%)。病变直径、位置、扫查路径、有无干扰因素、有无伪影、动脉期增强程度对4D-CEUS的成像质量有显著影响(统计值为-2.455、-2.198、-2.428、-5.575、-6.469、43.060,均P<0.05)。

结论

4D-CEUS成像质量的影响因素有注药方式,病变直径、位置及增强方式,扫查路径、扫查过程中有无伪影,有无膈肌、肋骨、心脏、大血管等成像干扰因素。

Objective

To explore 4D-CEUS methodologies and the factors affecting image quality.

Methods

4D-CEUS data of one hundred and fifty-one focal liver confirmed by pathology and clinical follow-up from the First Affiliated Hospital of Sun Yat-sen University were respectively analyzed. The image quality was scored and influencing factors were analyzed.

Results

(1) The injection methods of 4D-CEUS had significant influence on the imaging quality of 4D-CEUS, while slow injecting contrast agents without saline could prolong pure arterial pulse, mean time was (5.17±1.03) s, with image quality superior to conventional bolus (statistical value 88.868, P=0.000). (2) The image quality of 4D-CEUS in the arterial phase of 151 FLLs was divided into 4 grades, with 82 cases (54.3%) in grade 1, 17 cases (11.3%)in grade 2, 25 cases (16.6%) in grade 3, 27 cases (17.9%) in grade 4. The number of lesions showing hyper-enhancement, iso-enhancement, hypo-enhancement was 119 (78.8%), 6 (4.0%) and 26 (17.2%), respectively. Location of lesions, sizes, scanning path, interference, and the artifacts had significant influences on the image quality of 4D-CEUS (statistical values -2.455, -2.198, -2.428, -5.575, -6.469, 43.060, all P<0.05).

Conclusion

The image quality of 4D-CEUS is affected by the method of injection, sizes of lesions, location, blood supply, scanning path, the presence of artifacts, and the presence of interference.

图1 肝脏局灶性结节增生的4D-CEUS动脉期成像 病变轮廓清晰,立体感强,病变内部及周边血管解剖显示清晰,血管连续性好,无明显伪影,分为1级,可见病变离心增强,增强范围由内而外逐渐增大的过程(A-F)
图2 不同增强水平的肝脏局灶性病变 4D-CEUS动脉期成像 A为高增强病变对比度佳,轮廓清晰,图片质量为1级(箭头);B为低增强病变立体感差,轮廓不清,无法进行诊断,图像质量为4级(虚线)
表1 151例肝脏局灶性病变患者的4D-CEUS图像质量的影响因素分析
图3 不同增强水平下图像质量分布显示 高增强的病变图像较等增强及低增强的病变更能得到较好的成像质量,等增强的病变成像质量最差
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