Hi! Try asking sa OB mo directly kung saan sila nag-refer for 3D ultrasound, maraming clinics sa PQ area na may partnerships, so pwede ka nila i-guide dun at mas mura sometimes if referred, plus sigurado na quality ang equipment. A few of us found na ang smaller imaging centers (not the big chains) ay mas affordable, kaya worth it talaga ang inquiry sa OB since they usually know the best rates and trusted places na malapit sa inyo!