Gastroesophageal reflux measurement and imaging

Gastroesophageal reflux measurement and imaging are mainly used for the diagnosis of gastroesophageal reflux, with a sensitivity of about 90%. When there is gastroesophageal reflux, gastroesophageal reflux imaging shows radioactivity above the cardia, with a GERI >4%. 37-74 MBq (1 to 2 mCi) of 99mTc-SC or 99mTc-DTPA was added to a 300 ml acidic beverage. The adult subjects were fasted for more than 4 hours, the abdominal pressure was attached to the abdominal belt, and the drink was completed within 3 minutes. The abdomen was gradually pressurized from 0 to 13.3 kPa, and once per press. Basic Information Specialist classification: Digestive examination classification: ultrasound Applicable gender: whether men and women apply fasting: fasting Tips: Avoid eating before checking. Normal value The outline of the stomach is clear, the semi-empty time of the solid food stomach is 76-108 min, and the semi-empty time of the liquid food stomach is 9-15 min. Clinical significance Abnormal results: diffuse mucosal erythema, edema, increased fragility, erosion, ulceration, stenosis, and Barrett's epithelium. People who need to be examined: people with gastroesophageal reflux disease. Precautions Taboo before inspection: eating. Requirements for inspection: cooperate with the doctor. Inspection process 37-74 MBq (1 to 2 mCi) of 99mTc-SC or 99mTc-DTPA was added to a 300 ml acidic beverage. The adult subjects were fasted for more than 4 hours, the abdominal pressure was attached to the abdominal belt, and the drink was completed within 3 minutes. The abdomen was gradually pressurized from 0 to 13.3 kPa, and once per press. Infant and young children can be dynamically imaged to 1h at 1 frame/2min without abdominal pressure. The ROI technique was used to calculate the gastroesophageal reflux index (GERI) at different pressures. Not suitable for the crowd People who respond to imaging agents. Adverse reactions and risks No complications.