Hi Jennifer,
It sounds interesting. I have always thought that instead of routinely recommending a repeat mammo or ultrasound in "x" months because the breasts are simply too dense to be able to see cancers, it hasn't been more common to at LEAST try offering the patient the choice of having a breast cancer marker done like a CA 15-3 or a CA 27.29 -- even though they aren't always reliable indicators.
Here's another blood test that sounds interesting, like your article:
http://www.englandseastmidlands.com/News.aspx?ID=176
I notice that neither of these blood tests state that they can be used for early detection of recurrence by those who have already had bc.... They seem to be used just for initial detection but they don't specifically say anything about detection of recurrence.
AlaskaAngel