Yep. I'm in Cairns, and my mum is one of the managers at Cairns Diagnostic Imaging, which is part of Qld Xray. In Townsville, they're at the Mater Townsville & Parkhaven. You won't need a referral, just ring them up and let them know you want a 3d scan. You will have to pay, but I'm not sure how much.