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.
PAI system used to scan pigmented skin lesions. (Left) Schematic of PAI system showing laser source, signal processing procedure, and linear-array PA probe (viewed from elevational direction). (Right) View of the PA probe head (enclosed by dashed box on left) showing crossed laser beam geometry (lateral direction).
