What is the difference between gastrointestinal ultrasonography and gastroscopy?

The difference between gastrointestinal ultrasonography and gastroscopy mainly lies in the examination method, applicable diseases, applicable people and so on.
1. Inspection method: Gastrointestinal ultrasonography is to make the gastrointestinal cavity full by oral administration of contrast agent, and then inspect it through ultrasonography, which can observe the lesions inside the gastrointestinal tissues such as gastric mucous layer, submucosal layer, muscular layer, etc., and also observe the lesions in the adjacent tissues such as bile ducts, pancreas, etc. Gastroscopy is to insert the gastroscope from the mouth and enter the stomach through the esophagus.
Gastroscopy is to insert the gastroscope from the mouth and enter the stomach through the esophagus. The doctor can observe the lesions on the surface of the gastric mucosa through the gastroscope and take biopsy of the suspected area for pathological examination.
2. Applicable diseases: Gastroscopy can directly detect the lesions of gastric mucosa, such as congestion, edema, erosion, ulceration, etc. It can diagnose chronic gastritis, peptic ulcer, gastric polyps and other diseases, and at the same time, biopsy of gastroscopy is also the gold standard for diagnosing gastric cancer.
Gastrointestinal ultrasonography is mainly used for health screening of gastrointestinal diseases, review after gastrointestinal surgery, and people with contraindications to gastroscopy.
3. Applicable people: Generally speaking, gastroscopy should be performed on patients with abdominal discomfort such as unexplained acid regurgitation and belching, abdominal distension and abdominal pain, or patients with suspected upper gastrointestinal bleeding. However, it is contraindicated in patients with severe cardiovascular disease.
Gastrointestinal ultrasonography is better tolerated and can be considered for patients who cannot tolerate gastroscopy, but it is contraindicated for patients with suspected gastrointestinal perforation and suspected pyloric obstruction.
Gastrointestinal ultrasonography and gastroscopy have their own advantages, and patients should choose the appropriate method for themselves according to medical advice.