A tumour at a depth of 10 cm is treated with a radiation beam delivering 1.86 Gy. What is the percent depth dose function for the tumour if the maximal dose the patient received was 2.3 Gy?

Question

Quizplus · Accepted Answer

The percent depth dose (PDD) function is calculated by dividing the dose at the specific depth (in this case, the tumor at 10 cm depth receiving 1.86 Gy) by the maximum dose received (2.3 Gy) and then multiplying by 100 to get a percentage. So, $PDD = \frac{1.86\ Gy}{2.3\ Gy} \times 100 = 81%$.

A Tumour at a Depth of 10 Cm Is Treated