Conventionally fractionated radiotherapy | Stereotactic ablative radiotherapy (SABR) | |
---|---|---|
Radiographic changes within 6 months after completion of radiotherapy | •consolidation conform to irradiation field •diffuse ground glass opacities and/or airspace consolidation •nodule-like pattern •atelectasis •(ipsilateral) pleural effusion | •diffuse and/or patchy consolidation •diffuse and/or patchy ground glass opacities |
Radiographic changes after 6 months following completion of radiotherapy | •scar-like fibrosis > conventional pattern > mass-like fibrosis •volume loss •linear scarring/restriction to radiation fields •chronic consolidation ± air-bronchograms •bronchiectasis •pleural thickening •hilar vascular displacement •mediastinal shift •(ipsilateral) pleural effusion | •modified conventional pattern > scar-like fibrosis > mass-like fibrosis •chronic consolidation •volume loss •bronchiectasis |