Me XW, Li XY. Value of real-time shear wave elastography in assessing liver fibrosis in patients with chronic hepatitis B.
Shijie Huaren Xiaohua Zazhi 2018;
26:932-938. [DOI:
10.11569/wcjd.v26.i15.932]
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Abstract
AIM
To evaluate the value of real-time shear wave elastography (SWE) and routine ultrasonography in the assessment of liver fibrosis in patients with chronic hepatitis B.
METHODS
A retrospective analysis was performed of 87 patients with chronic hepatitis B treated in Tangshan Infectious Disease Hospital from August 2015 to June 2017. All patients underwent routine ultrasound and SWE examinations. Using the pathological biopsy results as the gold standard, the results of routine ultrasound and SWE in staging and diagnosing liver fibrosis were compared by ROC curve analysis.
RESULTS
There was no significant difference in conventional ultrasound scores between adjacent stages of liver fibrosis (S0-S1 vs S2, S2 vs S3, and S3 vs S4), but there were significant differences between non-adjacent stages (S0-S1 vs S3, S0-S1 vs S4, and S2 vs S4; P = 0.001, 0.000, and 0.000, respectively). The elastic modulus values of SWE in different stages of liver fibrosis were 5.625 kPa ± 1.221 kPa (S0), 7.172 kPa ± 1.818 kPa (S1), 10.295 kPa ± 3.122 kPa (S2), 15.541 kPa ± 4.340 kPa (S3), and 23.918 kPa ± 5.697 kPa (S4). There was a significant difference in the elastic modulus values between both adjacent and non-adjacent stages (P < 0.05 for all). Spearman correlation analysis showed that there was a positive correlation between conventional ultrasound score or SWE elastic modulus and liver fibrosis stage (r = 0.529, 0.798, P < 0.001). The areas under the ROC curve of conventional ultrasound score in diagnosing liver fibrosis S ≥ 2, S ≥ 3, and S4 were 0.766, 0.891, and 0.764, respectively; the corresponding values of SWE were 0.941, 0.948, and 0.952, respectively. The diagnostic efficiency of SWE was higher than that of conventional ultrasound (P < 0.05).
CONCLUSION
Compared with conventional ultrasound, SWE has higher value in assessing the degree of liver fibrosis in patients with chronic hepatitis B, with better reproducibility.
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