Long-term clinical outcomes of lipiodol marking using standard gastroscopy for image-guided radiotherapy of upper gastrointestinal cancers

Figure 3 Kaplan Meier curve-treatment intent. A: The Kaplan-Meier curve for the overall survival (OS) of patients receiving curative intent standard image-guided radiotherapy (S-IGRT) and fiducial-based IGRT (F-IGRT) treatment; B: The Kaplan-Meier curve for the progression free survival (PFS) of patients receiving curative intent S-IGRT and F-IGRT treatment; C: The Kaplan-Meier curve for the OS of patients receiving palliative intent F-IGRT treatment; D: The Kaplan-Meier curve for the PFS of patients receiving palliative intent F-IGRT treatment, respectively. NA: Not applicable; S-IGRT: Standard image-guided radiotherapy; LF-IGRT: Liquid fiducial-based image-guided radiotherapy.