The Value of Contrast-Enhanced Ultrasound-Guided Contrast Injection via the Endoscopic Nasobiliary Drainage Duct in Diagnosing Residual Common Bile Duct Stones

<div>(a) US could not demonstrate the CBD clearly before saline injection. (b) The morphology, position, and course of the CBD were displayed by CEUS imaging. (c) The CBD were completely demonstrated after injection, and several hyperechoic masses were found in the beginning of the CBD. (d) Several tawny stones were detected by ERCP.</div>

BioMed Research International

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Figure 2

Figure 2: The Value of Contrast-Enhanced Ultrasound-Guided Contrast Injection via the Endoscopic Nasobiliary Drainage Duct in Diagnosing Residual Common Bile Duct Stones 

Figure 2 | The Value of Contrast-Enhanced Ultrasound-Guided Contrast Injection via the Endoscopic Nasobiliary Drainage Duct in Diagnosing Residual Common Bile Duct Stones 