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| The imaging analysis of gallbladder adenomyomatosis on contrast-enhanced ultrasound |
Department of Medical Ultrasound, Shanghai Tenth People’s Hospital of Tongji University
School of Medicine, Shanghai 200072, China |
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Abstract Objective: To investigate the enhancement pattern and parameters of contrast enhanced ultrasound(CEUS) in gallbladder adenomyomatosis. Methods: Thirty pathologically proven gallbladder adenomyosis in 30 patients who had undergone CEUS preoperatively were included in this study. Various contrast enhancement patterns and parameters were retrospectively analyzed. Results: Twenty-five lesions showed hyper-enhancement during the arterial phase and 5 lesions showed iso-enhancement. As to the pattern of intralesional vascularity, 9 lesions showed peripheral rim-like hyper-enhancement（30%, 9/30）. The contrast agent entered the mucosa firstly and then theserosa of the gallbladder wall. The arrival time of contrast agent to the lesion was (13.83±3.38) s and the washout time was (56.29±28.91) s. Preoperatively, two readers using conventional ultrasound made 5 correct diagnosis of gallbladder adenomyomatosis among the all 30 cases(16.7%, 5/30) whereas, using CEUS they made 26 correct ones(86.7%, 26/30). Besides, 11 lesions which were poorly defined using conventional ultrasound were well defined using CEUS. Conclusions: Enhancement patterns and parameters of CEUS may be useful in the noninvasive diagnosis of gallbladder adenomyomatosis.
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Received: 08 July 2015
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Corresponding Authors:
XU Hui-xiong
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