Hi Mrs Worry.
We must stop meeting like this, people will start talking? 🙂
Joking apart. I doubt very much whether your husband will have a scan on the day of your first urology appointment. I suppose he may have another DRE.
I think the urologist will take your husband's medical history, and as he possibly has an infection, may be take further blood tests. He may then book him in for an MRI.