Chase the low draw?

[Boolean]

I've found that I'm not sure how to deal with these types of hands. What kind of odds do you look for when you have just a backdoor draw to the nut low, or would you fold it regardless? Hand in question:

PokerStars 0.25/0.50 Omaha/8 (9 handed) converter

Preflop: Hero is MP1 with 6[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/diamond.gif[/img].
UTG calls, <font color="#666666">1 fold</font>, Hero calls, <font color="#666666">1 fold</font>, <font color="#CC3333">MP3 raises</font>, <font color="#666666">2 folds</font>, SB calls, BB calls, UTG folds, Hero calls.

Flop: (9 SB) A[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, Hero checks, <font color="#CC3333">MP3 bets</font>, SB calls, BB calls, Hero calls.

Turn: (6.50 BB) 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, Hero checks, <font color="#CC3333">MP3 bets</font>, SB calls, BB calls, Hero calls.

River: (10.50 BB) 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, Hero checks, <font color="#CC3333">MP3 bets</font>, SB calls, BB folds, <font color="#CC3333">Hero raises</font>, MP3 calls, SB calls.

When I made my low, I decided to go for a check-raise here, figuring I probably have half the pot at this point. Thoughts?

Final Pot: 16.50 BB