3+4=7 tumour(7mm) located in right apex with possible EPE.
RO has informed me that due to proximity of tumour to penile bulb, high probability of ED as the bulb will get a significant dose.
Is there any way of minimising dose to the CES (Critical Erectile Structure) without compromising oncological treatment. I have read that the distance between CES and apex can vary between 0.6mm-2.3cm. Surely with Truebeam SBRT there must be a way of precisely contouring dosage? - That would be my understanding of a beneficial quality of precision radiation therapy.
Also during RT how do they manage to spare the nerve bundles on either side of the prostate during treatment, especially in the case of possible EPE where they treat a margin outside of the prostate?