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Chinese Journal of Hepatic Surgery(Electronic Edition) ›› 2019, Vol. 08 ›› Issue (02): 159-163. doi: 10.3877/cma.j.issn.2095-3232.2019.02.017

• Clinical Research • Previous Articles     Next Articles

Value of contrast-enhanced ultrasound in differential diagnosis of wall-thickening gallbladder lesions

Xiaoli Wang1, Ma Li1, Zeping Huang1,()   

  1. 1. Department of Ultrasound, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
  • Received:2018-12-12 Online:2019-04-10 Published:2022-04-28
  • Contact: Zeping Huang

Abstract:

Objective

To evaluate contrast-enhanced ultrasound (CEUS) in the differential diagnosis of wall-thickening gallbladder lesions.

Methods

Clinical data of 61 patients with wall-thickening gallbladder lesions undergoing surgery in the Third Affiliated Hospital of Sun Yat-sen University from April 2006 to August 2018 were retrospectively analyzed. Among them, 36 patients were male and 25 female, aged (56±11) years on average. The informed consents of all patients were obtained and the local ethical committee approval was received. All patients received CEUS and enhanced CT before operation. The pathological examination results were taken as the gold standard. The values of CEUS and enhanced CT in the differential diagnosis of wall-thickening gallbladder lesions were evaluated by the receiver operating characteristic (ROC) curve. The rate comparison was conducted by Chi-square test or Fisher's exact test.

Results

Pathological examination indicated that 27 cases were with gallbladder adenocarcinoma, 26 chronic cholecystitis and 8 gallbladder adenomyosis. Inhomogeneous enhancement and homogeneous enhancement were observed respectively in 24 and 3 patients with gallbladder adenocarcinoma by CEUS, in 20 and 6 patients with chronic cholecystitis, and in 7 and 1 patients with gallbladder adenomyosis, where significant difference was observed (χ2=28.40, P<0.05). Continuous interruption of external wall and continuous interruption of internal wall were observed respectively in 19 and 21 patients with gallbladder adenocarcinoma, and in 2 and 5 patients with chronic cholecystitis correspondingly, whereas continuous interruption of internal wall was observed in only 1 patients with gallbladder adenomyosis, where significant difference was observed (P<0.05). The specificity, sensitivity, positive and negative predictive values of CEUS and enhanced CT in the differential diagnosis from benign to malignant wall-thickening gallbladder lesions were 0.79, 0.88, 0.77, 0.90 and 0.82, 0.85, 0.79, 0.88, respectively.

Conclusions

CEUS shows inhomogeneous enhancement in the gallbladder wall. Continuous interruption of the internal or external gallbladder walls contributes to the differential diagnosis between benign and malignant wall-thickening gallbladder lesions. CEUS and CT scan share equivalent diagnostic values.

Key words: Ultrasonography, interventional, Gallbladder wall thickening diseases, Gallbladder carcinoma, Diagnosis, differential

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