Background and purposeThe purpose of this work is to present the clinical experience from first-in-human trial real-time tumor targeting via MLC tracking for stereotactic ablative body radiotherapy (SABR) lung lesions.Methods materialsSeventeen patients with stage 1 non-small cell cancer (NSCLC) or metastases were included in a study electromagnetic transponder–guided SABR (NCT02514512). Patien...