Accuracy of ultrasound elastography in differential diagnosis of benign and malignant liver tumors and analysis of its influencing factors(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2018年第7期
- Page:
- 807-810
- Research Field:
- 医学影像物理
- Publishing date:
Info
- Title:
- Accuracy of ultrasound elastography in differential diagnosis of benign and malignant liver tumors and analysis of its influencing factors
- Author(s):
- ZHANG Shaodan1; LI Bing2; CHEN Wei1
- 1. Department of Ultrasound, Xi’an Union Hospital, Xi’an 710100, China; 2. Department of General Surgery, Xi’an Union Hospital, Xi’an 710100, China
- Keywords:
- ; Keywords: liver tumor; ultrasound elastography; contrast agent; sensitivity; specificity
- PACS:
- R455.1；R735.7
- DOI:
- DOI:10.3969/j.issn.1005-202X.2018.07.013
- Abstract:
- Abstract: Objective To investigate the accuracy and influencing factors of differential diagnosis of benign and malignant liver tumors with ultrasound elastography. Methods A total of 186 cases with suspected liver cancer were selected, including 56 cases diagnosed with ultrasound (group A), 77 diagnosed with ultrasound elastography (group B), and 53 diagnosed with ultrasound combined with contrast agent (group C). Using the diagnostic results on the medical records as the gold standards, the accuracy, sensitivity and specificity of the 3 groups were compared. Then a regression model was established to analyze the factors affecting the differential diagnosis of ultrasonic elastography. Results Group B and C were superior to group A in the sensitivity, specificity and accuracy of diagnosis, but no significant differences were found between group B and C. The overall efficacy in group B and C were significantly higher than that in group A, but group B and C didn’t showed any significant differences. The tumor size, calcification, blood flow, and the softness/hardness of the lesions had some effects on the differential diagnosis of ultrasonic elastography. The impacts of tumor size, calcification and blood flow were relatively mild, while the effects of the softness/hardness of the lesions were more significant. Conclusion Ultrasound elastography has a high efficacy in the differential diagnosis of benign and malignant liver tumors and greatly reduces the cost of treatment, worthy of clinical promotion.
Last Update: 2018-07-24