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¹Hacettepe Üniversitesi, Radyasyon Onkolojisi Anabilim Dalı, Ankara-Türkiye
²Celal Bayar Üniversitesi, Radyasyon Onkolojisi Anabilim Dalı, Manisa-Türkiye
³Sağlık Bilimleri Üniversitesi, Gülhane Eğitim ve Araştırma Hastanesi, Radyasyon Onkolojisi Anabilim Dalı, Ankara-Türkiye
⁴Etlik Şehir Hastanesi, Radyasyon Onkolojisi Anabilim Dalı, Ankara-Türkiye
⁵Başakşehir Çam ve Sakura Şehir Hastanesi, Radyasyon Onkolojisi Anabilim Dalı, İstanbul-Türkiye
⁶Afyonkarahisar Sağlık Bilimleri Üniversitesi, Radyasyon Onkolojisi Anabilim Dalı, Afyonkarahisar-Türkiye
⁷Selçuk Üniversitesi, Radyasyon Onkolojisi Anabilim Dalı, Konya-Türkiye
⁸Acıbadem İzmir Hastanesi, Radyasyon Onkolojisi Kliniği, İzmir-Türkiye DOI : 10.5505/tjo.2024.008 This report systematically addresses quality control and assurance tests aimed at enhancing the safety and efficacy of Image-Guided Radiation Therapy (IGRT). IGRT utilizes advanced imaging systems to accurately delineate tumor volumes, minimizing uncertainties caused by anatomical changes during treatment. The study encompasses quality control tests for 2D, 3D, and 4D imaging systems integrated with linear accelerators, as well as surface and respiratory tracking systems. The tests are categorized into three main groups: radiographic imaging systems, surface tracking systems, and respiratory tracking systems. The report details procedures and tolerance values for critical parameters such as geometric accuracy, image quality, and safety tests. Additionally, quality control methods for respiratory-gated radiation therapy systems and 4D-CBCT modules are presented. The report emphasizes the importance of standardizing quality control protocols to ensure the accurate and reliable implementation of IGRT and aims to serve as a guide for newly established clinics and medical physicists, providing a reference for developing and implementing their own quality control procedures. Keywords : 4D-CBCT; geometric accuracy; IGRT; quality control; respiratory tracking