Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

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.

View full-text article in PMC

. 2020 Jun 4;7:218. doi: 10.3389/fmed.2020.00218

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2020 Truffault, Bourhis, Chaput, Calais, Robin, Le Pennec, Lucia, Leclère, Gujral, Vera, Salaün, Schick and Abgral.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

Example of 49 year-old man with an T4N2M0 oropharyngeal HNSC. During routine clinical monitoring, a FDG-PET/CT scan was performed 7 months after chemoradiotherapy, and demonstrated an occult local relapse. PET_A (images on the top) and PET_R (images on the bottom) were scanned in treatment position (TP) and coregistered with RR method (left) and ER method (right). A₄₀ subvolume is represented as a yellow line, R₄₀ subvolume as a blue line and A₄₀∩R₄₀ in red area. The OF (A₄₀, R₄₀) index was calculated respectively at 0.19 and 0.64 for RR and ER method.