Same here and the same for CT. They missed my wifes acoustic neuroma three times. She knew something was wrong and we kept going back for different opinions.
A benign tumor the size of a tomatoe on her acoustic nerve at the brain stem and 13 hours of surgey later proved my wife knows herself better than the Doctors do.
But the surgeons at Yale were top rate.
Can't say as I have very high opinions of the "medical community" as a result.