The fluid‐filled stomach: A new sonic window

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Abstract
Gastric air and peristalsis usually are obstacles to ultrasound imaging of the tail of the pancreas. Normal volunteers [15] were scanned transversely in the supine position before and after i.v. administration of glucagon (1 mg) and oral administration of water. In 13 of 15 subjects, glucagon produced a dilated gastric fundus that retained fluid for 30-60 min, allowing good imaging of the pancreatic tail in 10 subjects and fair imaging in 2 subjects. This method of creating a gastric sonic window should prove to be valuable in ultrasound imaging of the pancreas.