Why is it important to use field shaping blocks in radiation therapy?

The use of field shaping blocks in radiation therapy is crucial primarily because they allow the radiation field to be contoured to fit the specific geometry of the tumor or treatment area. This customization is essential as it optimizes the delivery of radiation, ensuring that the maximum dose is delivered to the target while minimizing exposure to surrounding healthy tissues. By conforming the radiation field to the contours of the area being treated, the efficacy of the treatment is enhanced, potentially leading to better outcomes for the patient.

This principle is foundational in radiation therapy, as accurate targeting of the affected area ensures that normal tissues receive as little radiation as possible while still effectively treating the malignancy. The use of field shaping blocks thus plays an integral role in improving the precision of radiation delivery in clinical practice.