GS growth chart — interval growth assessment

Gestational Sac growth chart — interval growth assessment

LMP

LMP not known

Scan date (current)

Prior scan date (for interval growth)

Enter prior scan date and prior MSD (below) to assess interval growth.

CGA (weeks / days) — optional (overrides LMP)

Enter CGA to override LMP-derived GA.

MSD (mm) — current

Prior MSD (mm) — optional

MSD vs GA

Mean sac diameter (MSD) plotted against gestational age (weeks)

Ready

Console (errors / logs):