ABSTRACT
A prospective study was undertaken in 42 normal twin pregnancies to determine the
value of routine ultrasound evaluation in the prenatal diagnosis of intrauterine growth
retardation (IUGR) and intra-pair growth discordancy in twin gestations. Use of multiple
sonographic parameters significantly improved diagnostic accuracy when compared with
the use of single parameters, such as biparietal diameter (BPD) alone in the prepartum
diagnosis of these two entities.