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.
Description of the signs and digital measurement through image analysis
| Signs | Digital sign | Description |
|---|---|---|
| Red “o” | o | Narrowing or high plus pressure zone |
| Purple “o” | o | Narrowing or high-pressure zone |
| Blue “o” | o | Dilated zone |
| Light Blue “o” | o | Under dilated zone |
| Green “+” | + | Positive peristalsis behavior |
| Black “+” | + | Negative peristalsis behavior |
