What Is a Liver and Gallbladder Ultrasound Examination?

Ultrasound examination utilizes ultrasound imaging technology to scan a patient’s internal structures and display the findings as two-dimensional images. It is a highly desirable diagnostic method—non-invasive, painless, and free of radiation exposure. Ultrasound can detect pathological changes in solid organs and soft tissues, thereby complementing other commonly used physical and biochemical tests.

What Is Hepatobiliary Ultrasound?

Hepatobiliary ultrasound evaluates the size, shape, and echogenicity (echo pattern) of the liver and gallbladder to identify any abnormalities or disease. For instance, common hepatic conditions—including hepatic cysts, hemangiomas, hepatocellular carcinoma, and intrahepatic calcifications—can all be detected via ultrasound.

Regarding the gallbladder, ultrasound enables measurement of its size and wall thickness, and assessment of the gallbladder lumen for abnormal echoes. This allows clinicians to determine whether the gallbladder is enlarged, whether its wall is thickened, whether gallstones are present, and whether polyps exist on the gallbladder wall, among other pathologies. To ensure optimal image quality, patients must fast before undergoing hepatobiliary ultrasound—especially because food intake causes gallbladder contraction and bile expulsion, which may compromise visualization.

However, patients should be aware that ultrasound findings may appear identical across different stages of certain diseases. As ultrasound is not a histopathological examination, its diagnostic capability has inherent limitations and is confined to a specific scope.

We hope the above information is helpful. Wishing you good health and happiness!