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.
Magnetic resonance (MR) image segmentation and the delineation of region of interest (ROI). (A) The largest primary tumor cross-sectional area in the CE T1-weighted images of the nasopharynx. (B) Delineation of an ROI around the entire heterogeneous enhanced tumor outline. (C) ROI in the segmented single-layer tumor image.
