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.
The correlation between 4D-CT and SPECT images Top Row: The 4DCT‐Inhale phase (left) and SPECT (right) ventilation images for the case with the lowest over correlation . Bottom Row: The IJF (left) and MCVC (right) superimposed on the 4DCT‐Exhale phase. Ventilation images were converted to percentile images for direct visual comparison. printed with permission from Castillo E, et al (65).
