| Title |
Respiratory motion-integrated dose verification in VMAT: a study of the arccheck-3DVH system |
| Authors |
Krauleidis, Aurimas ; Burdulis, Dainius ; Repšė, Kristina ; Vilkas, Romas ; Gerdauskienė, Lina ; Adlienė, Diana |
| Full Text |
|
| Is Part of |
Medical physics in the Baltic states 2025: proceedings of the 17th international conference on medical physics, 6-8 November 2025, Kaunas, Lithuania / executive editor Diana Adlienė.. Kaunas : Kaunas University of Technology. 2025, p. 74-79.. ISSN 1822-5721 |
| Keywords [eng] |
Lung cancer ; VMAT ; Respiratory motion ; Dosimetric verification ; ArcCheck. |
| Abstract [eng] |
Modern dynamic radiotherapy techniques, such as volumetric modulated arc therapy (VMAT), face significant challenges due to tumor motion primarily caused by patient respiration which can compromise accurate dose delivery and optimal sparing of organs at risk (OARs). These challenges necessitate complex and precise dosimetric verification methods. This study evaluated the impact of respiratory-induced tumour motion on dose delivery accuracy in VMAT radiotherapy for 30 lung cancer cases using a 3D diode array system under static and dynamic conditions. The mean gamma pass rates were 99.4% under static conditions (3%/3 mm) and 55.6% under motion-simulated conditions (2%/2 mm). Significant dose variations were observed in the PTV mean dose, maximum dose, D2%, D95%, D98% under motion, with corresponding differences in organs at risk (OARs) further confirming the impact of motion. |
| Published |
Kaunas : Kaunas University of Technology |
| Type |
Conference paper |
| Language |
English |
| Publication date |
2025 |
| CC license |
|
