Mital P, Hooja N, Mehndiratta K.et al15concluded, that the measurement of placental thickness is an important parameter for estimation of fetal age
. It is helpful in cases where the exact duration of pregnancy is not known (especially between the 22ndweek and 35th week) where the placental thickness almost matches with the gestational age.
A mathematical model for the estimation of human embryonic and fetal age
. Cell Transplant 5(4):453-464.
In patients with congenital malformations, it is usually possible to determine the fetal age
at which developmental arrest occurred.
In 1997, James Kroll and Ben Koerth compared the fetal crown-to-rump length data from four different fetal age
models from South Carolina, Michigan, and two in New York.
During each fifteen-to-twenty minute routine scan, sonographers search for a fetal heartbeat; note the position and number of fetuses; and assess fetal age
, size, development, and the expected due date by measuring parts of the fetus.
Regression analysis in normal weight and obese patients showed that both methods have the same predictive power in determining fetal age
Lyman and his team are now using the cell-culture system to address that question and to determine how the infection varies as a function of fetal age
, time of infection, amount of virus and pathway of infection.
If so here, the fetal age
would be two weeks less than the gestational age, e.g., 20 weeks gestational age would translate into 18 weeks fetal age
On the other hand, understanding normal fetal growth rates of the vertebral column, and between species, provide a basis for the establishing of reference values for evaluation of the maturation, regional differences in growth that influence overall body form, and estimation of fetal age
Crown rump length has already been established as a highly valuable and trustworthy parameter in fetal age
estimation by showing a significant correlation with gestational age.
There was no fetal age
constraint for fetal echocardiography.
The first signs of their functioning were detected at 3-3.5 months of fetal age
. The first signs of thymus involution--an indicator of sexual maturity--were documented in a 1-month-old moose.