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.
A study of 32 normal pregnancies came to the result a gestational sac of 1-3 mm was detected at a mean hCG level of 1150 UI/l (range 800-1500), a yolk sac was detected at a mean level of 6000 UI/l (range 4500-7500) and fetal heartbeat was visible at a mean hCG level of 10,000 UI/l (range 8650-12,200).