Hi, LCV595,
I can only speak for myself regarding pulsatile tinnitus, but it is also often referred to as "vascular tinnitus". As you've seen on Whooshers.com, there are many different causes for PT. Since it involves a "heartbeat" sound in the ear, it usually has something to do with the veins or arteries in some way. My doctor told me he thought mine was just a venous hum, and that I would probably have to live with it.
For me, the pulsating began two years ago, after I was put on blood pressure medicine. The blood pressure medicine did weird things to me, and I was put on a couple different types of drugs. I finally got myself off all the BP medications, and am now controlling it with natural remedies, such as fish oil, COQ10, etc. Not everyone has a reaction to BP medicines like I did, and those drugs are good and valuable for many people. But for me, this is the right course of action.
I have taken my scans to several doctors, and even sent them to a doctor in Baltimore that I'd heard of. However, I never did hear back from that doctor. I'm not in California, so I cannot help you there. The best bet might be to find a good neurotologist (they specialize in a combination of neurology and otology) in your area. I believe there is a link on Whooshers.com to neurotologists in each U.S. state. Or, you could begin with an ENT, and he/she might then refer you to a specialist in your area.
A stapedectomy is a type of surgery for those who have otosclerosis (calcified buildup on the stapes bone in the ear), that would cause conductive hearing loss. The surgeon removes the stapes bone and inserts a prosthetic titanium "bone" in its place. The purpose of this surgery is to improve hearing, NOT to get rid of tinnitus or pulsatile tinnitus.
There is also a stapedotomy, wherein the surgeon doesn't actually remove the bone. I think the surgeon determines after he/she begins the procedure which type of surgery is best.
Some people have very good outcomes after stapes surgery, as regards improved hearing. I've only read about one person whose pulsatile tinnitus appears to have stopped after this surgery, so I wouldn't put too much stock in this as a possible cure.