Other applications associated with file type CPI: 1  Calamus (Graphic) by invers SoftwareAtari-based.  Cartesian Products (Compressed Internet Document) by Cartesian Products, Inc.Cartesian Perceptual Compression (CPC) is an image compression method specifically designed for document image storage and transmission systems.
There are two ultrasound measurements used to measure the amniotic fluid levels surrounding the baby: 1  Amniotic Fluid Index (AFI): this method uses the sum of four of the deepest vertical pocket of fluid. The normal range for the AFI is 5-25 cms.
The average value is therefore called 1.0 MoM. Down syndrome pregnancies have lower levels of AFP and estriol, so their levels would be below the average, and therefore less than 1.0 MOM. Likewise, hCG in a Down syndrome pregnancy would be greater than 1.0 MoM.