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Chinese Archives of General Surgery(Electronic Edition) ›› 2018, Vol. 12 ›› Issue (02): 106-110. doi: 10.3877/cma.j.issn.1674-0793.2018.02.008

Special Issue:

• Original Article • Previous Articles     Next Articles

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 Online:2018-04-01 Published:2018-04-01
  • Contact: Xiaoyan Xie
  • About author:
    Corresponding author: Xie Xiaoyan, Email:

Abstract:

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.

Key words: Liver diseases, Imaging, three-dimensional, Ultrasonography, Focal liver lesions

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