Related Experiment Video
Updated: Jul 31, 2026

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring
Published on: December 14, 2020
Sequential ten-second acquisitions for detection of gastroesophageal reflux
J C Seymour1, J H West, W E Drane
1Division of Nuclear Medicine, Shands Hospital, Gainesville, Florida.
Abstract:
We illustrate the importance of short imaging times during gastroesophageal (GE) scintigraphy to better image GE reflux while still obtaining clinically useful gastric emptying data. While most reflux scans are comprised of 30- or 60-sec sequential images, we advocate the use of 10-sec images to maximize the signal-to-noise ratio of any radionuclide present in the esophagus. In the current case, clinically documented reflux of significant magnitude was missed during a study inadvertently performed using 60-sec frames, but subsequently detected using a 10-sec imaging protocol.
Related Concept Videos
Gastroesophageal Reflux Disease II: Clinical Features and Management
Clinical Manifestations
GERD presents itself in a multitude of ways, with symptoms varying from person to person. The hallmark symptoms are...
Esophageal Strictures-I: Introduction
Etiology
The primary cause of esophageal strictures is long-standing gastroesophageal reflux disease (GERD), accounting for about 70 to 80% of adult cases. Chronic acid reflux can lead to injury and scarring of the esophageal lining, culminating in...
Ultrasound II: Endoscopic Ultrasound and FibroScan
Endoscopic Ultrasound (EUS):
Endoscopic Procedures I: Esophagogastroduodenoscopy
During an EGD, the endoscope can be used to:
Endoscopic Procedures III: Video Capsule Endoscopy
Upper GI Series: Barium Swallow
Purpose and Procedure
Patients undergoing this procedure ingest a liquid containing barium sulfate with a chalky...

