A discussion of PTVs and OARs.

Update: We misspoke and said Episode 6, but this is actually our 5th episode. Pardon the rookie mistake.

It's a simple fresher course on ICRU 50 & 62. We will look and attempt to explain the big three: GTV, CTV, PTV and its sub categories such as IM,SM,IV & TV.

Also, understanding organs at risk (OAR) when creating a quality treatment plan.