Overview
Evaluation of the repeatability and reproducibility of ADC maps in both primary and non-primary lesions lymph nodes in patients with head and neck cancer, using an acquisition protocol Standardized DWI
Description
DWI imaging consists of a spin-echo echo-planar sequence (SE-EPI) that will be acquired with 1.5 T or 3 T tomographs according to the equipment of the individual centers involved, setting the acquisition parameters after the administration of any contrast medium.
Eligibility
Inclusion Criteria:
- age over 18 years;
- primary squamous cell carcinoma (SCC) of the hypopharynx, oropharynx, or oral cavity; confirmed by histology;
- a lesion visible on at least three consecutive DWI images, with a minimum diameter of 2 cm;
- specific written informed consent;
Exclusion Criteria:
- incomplete acquisition of DWI images;
- presence of artifacts that do not allow quantitative analysis of DWI images;
- performance status 2 or more according to Zubrod.