What can abdominal B-ultrasound detect?

Abdominal B-ultrasound is a non-invasive and safe imaging examination method that uses ultrasound imaging technology to observe the structural and functional abnormalities of abdominal organs. it can clearly showLiver, gallbladder, pancreas, spleen, kidneysand other organ lesions, such as stones, cysts, tumors or inflammation, while also assessing the status of blood vessels and abdominal fluid collection. The examination results can provide important basis for clinical diagnosis, but some diseases need to be further confirmed in combination with other examinations.

1. Main inspection content and structure

The core examination objectives of abdominal B-ultrasound can be divided into three categories:solid organs(such as liver, spleen, pancreas),hollow organs(such as gallbladder, bile duct) andurinary system(kidney, bladder). Among them, common diseases such as gallbladder stones and fatty liver have a higher detection rate, while early-stage tumors or minimal lesions may require the assistance of enhanced CT/MRI. Fasting is required for 8 hours before the examination to improve the clarity of gallbladder imaging.

2. Diagnostic ability of common diseases

forHepatobiliary system, B-ultrasound can accurately identify gallbladder stones (detection rate >95%), liver cysts (fluid dark areas with clear boundaries) and cirrhosis (surface nodule-like changes).pancreatitisGland enlargement with reduced echo can be seen, andkidney stonesIt shows strong echo with sound shadow. However, the detection of lesions in gas-containing organs such as the gastrointestinal tract is limited and must be combined with gastroscopy or barium meal examination.

3. Special applications and limitations

Color Doppler B-ultrasound evaluationportal hypertensionorrenal artery stenosisSuch as vascular lesions, it also has guiding value for ascites location and puncture. However, due to factors such as patient body size and intestinal gas interference, the examination results may be reduced in obese patients or patients with acute intestinal obstruction. In addition, B-ultrasound cannot determine whether the tumor is benign or malignant, and must be combined with biopsy pathology.

4. Inspection precautions and supplementary measures

Before the examination, you must follow the doctor's advice to eat and drink, and wear loose clothing. Pregnant women can also safely undergo the test (avoiding the first trimester). If a suspected malignant tumor is found (such as liver mass with abnormal blood flow signal), further enhanced CT or PET-CT examination is recommended. Modern ultrasound techniques such as elastography can also assess the extent of liver fibrosis.

Summary

As a routine screening tool, abdominal B-ultrasound has a high detection rate for most abdominal organ lesions, and is especially suitable for diseases such as biliary stones and cysts. However, its diagnostic performance is affected by the operator's experience and equipment resolution, and complex cases require comprehensive judgment using a variety of inspection methods. Regular ultrasound examinations can help detect potential health problems early.

Quote sources:
1. "Clinical Ultrasound Diagnostics" (People's Medical Publishing House, edited by Wang Xinzhuang)
2. "Abdominal Ultrasound Examination Guide" by the Ultrasound Medicine Branch of the Chinese Medical Association
3. General Electric (GE) Voluson series and Philips EPIQ series ultrasonic equipment technical manuals