I've received a copy of a letter from my consultant to my GP, referring me for a laparoscopy, MBT and ovarian drilling, as I have PCOS and on my HSG had sluggish flow from both tubes. 
I know what the laparoscopy is, and the ovarian drilling but haven't heard of MBT before, and a google search seems to being up a shoe brand!
Can any of you knowledgeable people enlighten me please? 