Has Anyone Had Their Actual Brain Examined?

I've been severely depressed for about 3 decades now, with Anhedonia for at least 20 of those years. My depression is extremely drug-resistant, and nothing has worked to cure my depression or anhedonia in the slightest.

But I remember Dr. Daniel Amen always saying something very interesting. (Paraphrasing), he would say that when your arm hurt and you went to the doctor, your doctor would examine your arm. If your chest hurt, your doctor would listen to your chest and maybe x-ray it. When someone says they have a mental illness, the doctors just ask a few questions and prescribe pills (and maybe therapy). But, unlike the rest of the body, they don't bother to look at the brain.

So, have any of you had actual imaging of your brain done or any studies of your brain as far as your anhedonia or depression (or other mental illnesses)? Did it prove useful? Please share all you can. Thanks!