LOINC long common name : Fetal Head Diameter.biparietal US;
LOINC short name : Fet BPD US.meas;
LOINC description : Measured at level of thalamo-basal ganglia & either 3rd ventricle w/ visualization
of quadrigeminal cisterns or top of 3rd ventricle w/ visualization of cavum septum
pellucidi from echo leading edge to leading edge of parietal bones.;