What is the significance of measuring the wedge angle at a reference depth?

Measuring the wedge angle at a reference depth is crucial for facilitating accurate treatment planning. This process allows dosimetrists to account for the effects of the wedge in delivering a precise dose distribution to the treatment area. The wedge angle affects how the radiation beam is modified as it interacts with the tissue, altering the intensity of the beam across the field to achieve desired dosimetric outcomes.

By accurately determining the wedge angle, dosimetrists can more effectively plan treatment strategies that maximize radiation delivery to the tumor while minimizing exposure to surrounding healthy tissues. This level of precision is essential in ensuring that the prescribed dose is accurately delivered, as small variations in setup or dosimetry can lead to significant impacts on treatment efficacy and patient safety. Thus, measuring the wedge angle at a reference depth directly contributes to the overall effectiveness of the treatment plan.