Esophageal scintigraphy: a comparison with esophagoscopy

Area of Science:

• Gastroenterology and Hepatology
• Nuclear Medicine
• Diagnostic Imaging

Background:

• Esophageal symptoms necessitate accurate diagnostic methods.
• Endoscopy is a common diagnostic tool, but its utility can be enhanced by preliminary screening.

Purpose of the Study:

• To evaluate the diagnostic yield of esophageal scintigraphy compared to endoscopy.
• To assess the utility of gastroesophageal (GE) scintigraphy with extra-abdominal compression in patients with esophageal symptoms.

Main Methods:

• Fifty consecutive patients with esophageal symptoms underwent esophageal endoscopy, transit scintigraphy, and GE scintigraphy.
• Extra-abdominal compression was utilized during GE scintigraphy.
• Scintigraphic findings were correlated with endoscopic classifications.

Main Results:

• Esophageal scintigraphy detected abnormalities in 87% of patients with abnormal endoscopic findings.
• Prolonged transit time was the most frequent scintigraphic abnormality.
• Scintigraphy identified abnormalities in 31% of patients with normal endoscopic results, including hiatal hernia and GE reflux.

Conclusions:

• Esophageal scintigraphy demonstrates high sensitivity in detecting esophageal abnormalities.
• The technique is valuable for identifying conditions like prolonged transit time, hiatal hernia, and GE reflux.
• Esophageal scintigraphy is recommended as a cost-effective screening tool prior to endoscopy.