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Related Experiment Videos

[Some aspects of time-dose relationships].

T Sugawara, K Koito, T Aihara

    Gan No Rinsho. Japan Journal of Cancer Clinics
    |September 1, 1985
    PubMed
    Summary

    Accelerated fractionation, with shorter treatment times and higher daily doses, improved outcomes for non-small cell lung and oral cavity cancers. Postoperative breast cancer patients benefited from total doses exceeding 43 Gy.

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    Area of Science:

    • Radiation Oncology
    • Medical Physics
    • Oncology

    Context:

    • Analysis of 137 non-small cell lung cancers, 57 oral cavity cancers, and 98 postoperative breast cancers treated with external radiotherapy between 1974 and 1980.
    • Focus on time-dose relationships in radiotherapy fractionation.

    Purpose:

    • To determine optimal time-dose fractionation trends for different cancer types.
    • To compare the efficacy of various fractionation factors on local recurrence and survival rates.

    Summary:

    • Accelerated fractionation, characterized by shortened overall treatment times and high daily doses, demonstrated superiority over conventional fractionation for non-small cell lung and oral cavity cancers.
    • For postoperative breast cancers, no specific optimal trend was identified, although a total dose exceeding 43 Gy appeared beneficial.

    Impact:

    • Findings suggest that accelerated fractionation regimens can enhance treatment efficacy for specific head and neck and lung cancers.
    • Highlights the importance of individualized time-dose strategies in radiotherapy planning.

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