Clinical Research Directory

Inclusion Criteria: \- Patients aged over 18 who are hospitalized and requiring for a gastroenterology consultation or abdominal ultrasound, including cases of abdominal pain, diarrhea, abnormal liver function, unexplained fever, or evaluating intra-abdominal lesions. Exclusion Criteria: * Patients unable to comply with handheld ultrasound examination. * Patients who are in the intensive care unit. * Patients who had already undergone formal abdominal imaging within one week prior to the consultation. * Patients who referred for immediate endoscopic intervention, such as active gastrointestinal bleeding or foreign body ingestion.