ESTRO Brachytherapy for Prostate Cancer 2018

What to do about a low D 90 ?

Ask a few questions (and act if necessary):

How “low” is it ? – If < 120 Gy , maybe something should be done … – If between 120 and 145 Gy, maybe nothing should be done

1.

2. Was it measured accurately ? (image modalities, contouring, time frame, …)

Where is the underdose ?

3.

Where is the tumour ?

4.