TY - CHAP M1 - Book, Section TI - BIOMETRY OF THE FETAL BRAIN A1 - Haratz-Rubinstein, Natan A1 - Monteagudo, Ana A1 - Timor-Tritsch, Ilan E. A2 - Timor-Tritsch, Ilan E. A2 - Monteagudo, Ana A2 - Pilu, Gianluigi A2 - Malinger, Gustavo PY - 2017 T2 - Ultrasonography of the Prenatal Brain, 3e AB - Prenatal diagnosis should be instituted accurately and early enough to achieve an excellent level of care of the obstetric patient. Ultrasonography, with its increasingly better resolution and image quality, is making it easier for health care providers to make appropriate management decisions. Assessing whether a structure is normal or abnormal may not always be feasible, but if doubt exists regarding its normalcy, it must be carefully and diligently pursued. In addition, several measurements, such as the biparietal diameter (BPD) and the head circumference (HC), can be used to determine the gestational age of a fetus, especially during the first half of pregnancy. Correct estimation of gestational age is of paramount importance because adequate management of both low- and high-risk obstetric populations relies heavily on knowing the precise gestational age. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/23 UR - obgyn.mhmedical.com/content.aspx?aid=1138378812 ER -