LOINC long common name : Fetal Thorax Diameter.anterior-posterior US;
LOINC short name : Fet Thorax Diam AP US.meas;
LOINC description : There is little agreement about the landmarks to be used to make these measurements.
Usually the antero posterior and transaxial diameters are measured from outer edge
to outer edge in the trans-axial projections at the level of cardiac motion.;