Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Manometric characteristics of distal antrum, pylorus, and the duodenal bulb. Pylorus is identified by at least two of the four distinct patterns: 1) baseline elevation of ≥3 mmHg (tonic pattern); 2) antral-type phasic pressure activity mixed with duodenal phasic activity (phasic pattern); 3) phasic pattern superimposed on tonic activity (combined tonic-phasic pattern); or 4) by the contractile activity in a sensor proximal to duodenal bulb quiescence.
