The investigators' study is a prospective study to evaluate the enhancement pattern of contrast-enhanced endoscopic ultrasonography and suggest the criterions for differential diagnosis between gallbladder polyps by using software program of quantitative analysis.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
After acquiring the EUS image by a regular procedure of EUS and contrast-enhanced with one of the fluoro-gas-containing contrast agents (SonoVue, Bracco, Germany), whole video is recorded on the embedded HDD (hard disk drive) of the US system for later analysis. The videos will be analyzed by using the VueBox software (Bracco Suisse SA, Geneva, Switzerland). After surgical treatment, we will compare the results of quantitative analysis with surgical pathology.
Division of Gastroenterology, Department of Internal Medicine, Yonsei Institute of Gastroenterology, Yonsei University College of Medicine
Seoul, South Korea
Accuracy between visual assessment and quantificational analysis based on surgical pathology
Time frame: 1day
Sensitivity between visual assessment and quantificational analysis based on surgical pathology
Time frame: 1 day
Specificity between visual assessment and quantificational analysis based on surgical pathology
Time frame: 1 day
PPV between visual assessment and quantificational analysis based on surgical pathology
Time frame: 1 day
NPV between visual assessment and quantificational analysis based on surgical pathology
Time frame: 1 day
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