Image-guidance technique comparison on respiratory reproducibility and dose indexes for stereotactic body radiotherapy in lung tumor ☆

Recently, image-guided radiation therapy (IGRT) has been widely used in clinical practices.1,2 This is because highly accurate localization and positioning for are required for target to facilitate high-accuracy external radiotherapy such as stereotactic body radiotherapy (SBRT).3,4 In addition, organ motion should also be considered during SBRT in lung tumors. IGRT can be used to confirm and correct the target position prior to irradiation, and thus it can reduce the setup error of the target. It is recommended that the positioning accuracy of the target during irradiation should have an error of ≤5 mm in fractionated SBRT in lung tumors.
Source: Medical Dosimetry - Category: Radiology Authors: Source Type: research