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.
Representative B-mode images of lung for a healthy control (a) and for a patient (b). The lung surface of a healthy subject is typically smooth while a patient’s lung surface is relatively rough. Eight locations over a length of approximately 6 mm on the lung surface were used to measure the lung surface motion using ultrasound tracking beams.
