Abdominal B-ultrasound overview

Abdominal B-ultrasound is a non-invasive medical method that uses ultrasound imaging technology to examine abdominal organs. It is mainly used to diagnose lesions of the liver, gallbladder, pancreas, spleen, kidney and other organs. Its core advantages are safety, convenience, no radiation, and suitable for all types of people. The main content structure includes:Check principle(ultrasonic reflection imaging),Indications(such as stone and tumor screening),Operation process(fasting preparation, probe scanning) andclinical significance(Assistant disease diagnosis). Secondary content covers precautions (such as fasting before examination) and limitations (sensitivity to gas interference).

The principles and technical characteristics of abdominal B-ultrasound

Abdominal B-ultrasound uses high-frequency sound waves to penetrate human tissue and generate real-time images by receiving reflected signals. itsTechnical featuresIncluding: ① No ionizing radiation, repeatable examination; ② Dynamic observation of organ blood flow (such as color Doppler function); ③ High resolution, able to detect millimeter-level lesions (such as gallbladder polyps). However, some organs, such as the pancreas, may show restriction due to intestinal gas or obesity. Common equipment manufacturers includeGE Healthcare(Model Logiq series),Philips(EPIQ series) andSiemens(ACUSON series).

Clinical application and indications of abdominal B-ultrasound

This check is widely usedDisease screening and diagnosis: ① Hepatobiliary system (fatty liver, gallstones); ② Urinary system (renal cysts, ureteral stones); ③ Gynecology (uterine fibroids, ovarian cysts). According to statistics from the "Chinese Journal of Ultrasound Medicine", the detection rate of gallbladder stones by B-ultrasound exceeds 95%. In special scenarios (such as emergency abdominal pain), appendicitis or ectopic pregnancy can be quickly identified. But please note,Inadequate bowel preparationorOperator is inexperiencedMay affect the accuracy of results.

Examination procedures and patient precautions

Patients need to advanceFasting for 8 hours(Reduce gastrointestinal gas interference), drink water to hold urine when necessary (improve bladder imaging). During the examination, you lie on your back. The doctor applies coupling agent and then slides the probe to scan. The whole process takes about 10-15 minutes. There are no special contraindications after surgery, and the report is usually issued within 30 minutes. Children or pregnant women need to adjust the probe frequency to ensure safety. Academician Zhang Yun, a well-known expert, pointed out: "Under standardized operation, B-ultrasound is the first choice tool for primary screening of abdominal diseases."

Summary and limitations

Abdominal B-ultrasound withCost effectivehas become a routine physical examination item, but its diagnosis needs to be combined with clinical symptoms and other examinations (such as CT). In the future, with the development of new technologies such as contrast-enhanced ultrasound and elastography, its accuracy will be further improved. When selecting patients, attention should be paid to the qualifications of medical institutions and equipment models to avoid the risk of misdiagnosis by informal institutions.

Quote sources:
1. "Chinese Journal of Ultrasound Medicine" Volume 38, 2022
2. "Clinical Ultrasound Diagnostics" by Academician Zhang Yun (People's Medical Publishing House)
3. Manufacturer’s public technical manual (GE/Philips/Siemens official website)