Karaca, F.Keskin, S.Akkaya, H.Mentes, S.Altintas, S.Bayhan, A. Z.Gulek, B.2025-09-032025-09-0320251119-30772229-773110.4103/njcp.njcp_229_252-s2.0-105011856158https://doi.org/10.4103/njcp.njcp_229_25https://hdl.handle.net/20.500.14720/28299Background and Aim:This study aimed to examine the changes in vascular structures due to radiotherapy (RT) in patients who received adjuvant RT and chemotherapy with the diagnosis of gastric cancer.Materials and Methods:Thirty-three patients receive curative doses of adjuvant external RT. The changes in the diameters of the portal vein (PV) and celiac artery (CA) in mm in computed tomography were examined before RT (RT0) and 3 months after RT (RT1).Results:The RT1-PV value decreases by 0.31 mm when compared to the RT0 value (P < 0.05). Likewise, the CA measurements too showed a decrease by 0.24 mm, when the RT0 and RT1 values were compared.Conclusion:In this study, the measurements of the CA and PV in mm at time RT1 were smaller than their measurements at time RT0.eninfo:eu-repo/semantics/openAccessGastric CancerRadiologicalRadiotherapyArticle287Q3Q284885340717056WOS:001537579200013