Individualized radiology screening for newly diagnosed nasopharyngeal carcinoma

Area of Science:

• Oncology
• Radiology
• Biomarkers

Background:

• Current nasopharyngeal carcinoma (NPC) staging relies on universal PET/CT screening, despite a low incidence of synchronous distant metastasis (SDM).
• This approach may lead to unnecessary screening in low-risk patients.

Purpose of the Study:

• To develop individualized screening recommendations for NPC patients based on their specific risk of SDM.
• To create a predictive model for identifying patients who would benefit most from PET/CT staging.

Main Methods:

• Retrospective analysis of 18 pre-treatment peripheral blood indicators in 2271 NPC patients.
• Construction of a peripheral blood risk score (PBRS) using LASSO regression.
• Development and validation of a PBRS-based distant metastases (PBDM) model using logistic regression and ROC analysis.

Main Results:

• Key indicators for SDM included Epstein-Barr viral DNA, lymphocyte percentage, lactate dehydrogenase, and monocyte-to-lymphocyte ratio.
• The PBDM model incorporated sex, T stage, N stage, and PBRS, demonstrating good predictive performance.
• Patients were stratified into low-, medium-, and high-risk groups for SDM.

Conclusions:

• The PBDM model provides a personalized approach to PET/CT screening for NPC staging.
• This targeted strategy allows for more efficient use of resources by focusing on patients with a higher risk of SDM.