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.
Advantages and limitations of ultrasound guidance
| Advantage | Limitations |
|---|---|
| Can be performed in any position | Thickness of ribcage and soft tissues (i.e., obese patients) |
| Identification of the best site of puncture and best safety margin | Subcutaneous emphysema or large thoracic dressings |
