What's the difference between your Fetal Ultrasound Training Phantom - 20 Weeks SKU 065-20/065-36 and the CIRS -068 20 week phantom? Are your phantoms only for 3D teaching?

All of the Fetal Ultrasound Training Phantoms are for use in 2D, 3D and 4D scan techniques. The model 068 varies from the model 065 in that it allows the user to Measure CRL, BPD, FL and AC. All 068 anatomies are based on published biometric data for normal fetal growth rates for a gestational age of 21 weeks. This enables assessment of composite measurement techniques and biometric analysis programs common to most ultrasound scanners.