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Radiation beams shaped and varied in intensity from multiple angles, or while the machine rotates around the patient (VMAT), so the dose hugs the tumour and misses healthy tissue, checked against imaging before each session so it lands where planned. It cut dry mouth in head and neck cancer and rectal toxicity in prostate cancer.
Intensity-modulated radiotherapy (IMRT) sculpts dose with a multileaf collimator; volumetric modulated arc therapy (VMAT) does it while the machine rotates, in minutes; image-guided radiotherapy (IGRT) uses cone-beam CT or surface tracking before each fraction. Together they cut xerostomia in head and neck cancer (PARSPORT), rectal toxicity in prostate cancer and allowed hypofractionation. Planning quality depends on contouring, now aided by AI auto-segmentation. Proton therapy adds a sharper depth stop for selected tumours.
Showing the technology this term belongs to: IMRT / IGRT (modern external beam).
Shares Volumetric modulated arc therapy (VMAT), AI auto-contouring and adaptive planning, C-arm medical linear accelerators (TrueBeam, Versa HD and others), IMRT / IGRT (modern external beam).
Shares Volumetric modulated arc therapy (VMAT), C-arm medical linear accelerators (TrueBeam, Versa HD and others), IMRT / IGRT (modern external beam).
Shares Gray unit (Gy), Brachytherapy (internal radiotherapy), Stereotactic body radiotherapy (SBRT / SABR).
Shares Gray unit (Gy), Hypofractionation (fewer, larger radiotherapy doses), Proton therapy, IMRT / IGRT (modern external beam).
Shares Volumetric modulated arc therapy (VMAT), IMRT / IGRT (modern external beam).
Shares AI auto-contouring and adaptive planning, Proton therapy.
Shares Brachytherapy (internal radiotherapy), IMRT / IGRT (modern external beam).