Radiation therapy using external beam
radiation therapy (EBRT) is playing an important role for effective treatment
of all kinds of tumors. Peripheral dose is the result of leakage
and scatter from multileaf collimators devices (MLCs), counts for 2-10% of
the maximum dose given to the patient, depending on the machine used and type
of treatment.
The present review reveals that despite of the
recent advancements in linear accelerators (LINAC) and MLC design and
technology, the remaining small amount of leakage (peripheral dose) of these
devices still has significant side effects on patient’s life span and quality
of life after treatment.
Based on the findings in this review, it is
suggested that introduction of additional effective and patient-specific shielding
techniques would have great impact on reducing risk of radiating healthy cells
and hence adversely side effects on cancer patients.
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