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  2. Radiation therapy - Wikipedia

    en.wikipedia.org/wiki/Radiation_therapy

    Radiation therapy or radiotherapy (RT, RTx, or XRT) is a treatment using ionizing radiation, generally provided as part of cancer therapy to either kill or control the growth of malignant cells. It is normally delivered by a linear particle accelerator .

  3. Image-guided radiation therapy - Wikipedia

    en.wikipedia.org/wiki/Image-guided_radiation_therapy

    Image-guided radiation therapy (IGRT) is the process of frequent imaging, during a course of radiation treatment, used to direct the treatment, position the patient, and compare to the pre-therapy imaging from the treatment plan. [1]

  4. Radiation treatment planning - Wikipedia

    en.wikipedia.org/wiki/Radiation_treatment_planning

    Doctor reviewing a radiation treatment plan. In radiotherapy, radiation treatment planning (RTP) is the process in which a team consisting of radiation oncologists, radiation therapist, medical physicists and medical dosimetrists plan the appropriate external beam radiotherapy or internal brachytherapy treatment technique for a patient with cancer.

  5. Intraoperative electron radiation therapy - Wikipedia

    en.wikipedia.org/wiki/Intraoperative_Electron...

    Intraoperative electron radiation therapy is the application of electron radiation directly to the residual tumor or tumor bed during cancer surgery. [1] [2] Electron beams are useful for intraoperative radiation treatment because, depending on the electron energy, the dose falls off rapidly behind the target site, therefore sparing underlying healthy tissue.

  6. iCAD Expands Global Distribution of the Xoft Electronic ... - AOL

    www.aol.com/news/2013-04-09-icad-expands-global...

    NASHUA, N.H.--(BUSINESS WIRE)-- iCAD, Inc. (NAS: ICAD) , a leading provider of advanced imaging and radiation therapy technologies for the detection and treatment of cancer, today announced that ...

  7. Tissue-to-air ratio - Wikipedia

    en.wikipedia.org/wiki/Tissue-to-air_ratio

    TAR increases with increasing beam energy because higher energy radiation is more penetrating; TAR decreases with depth because of attenuation; TAR increases with field size due to increased scatter contribution; Measurements for each are taken using an ion chamber for identical source to detector distances and field sizes. [3]

  8. Dose-volume histogram - Wikipedia

    en.wikipedia.org/wiki/Dose-volume_histogram

    In modern radiation therapy, 3D dose distributions are typically created in a computerized treatment planning system (TPS) based on a 3D reconstruction of a CT scan. The "volume" referred to in DVH analysis is a target of radiation treatment, a healthy organ nearby a target, or an arbitrary structure.

  9. Prostate brachytherapy - Wikipedia

    en.wikipedia.org/wiki/Prostate_brachytherapy

    The radiation does not affect the back passage (rectum, blue) at all. When LDR prostate brachytherapy (seed or polymer source implantation) is carried out, an ultrasound probe is inserted into the rectum (back passage), and images from this probe are used to assess the size and shape of the prostate gland .

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