TABLE A-1 Methods for Determining Menstrual Age Clinical or Sonographic Parameter Variability Estimate (2 SD) In vitro fertilization * ±1 day Ovulation induction * ±3 days Artificial insemination * ±3…
Summary of Key Points • Obesity is epidemic and a significant public health problem. • Obese women are at increased risk of maternal complications of pregnancy compared to women of…
Outline Development of the Fetal Skeleton, 273 Skeletogenesis (Genetics and Embryology), 273 Endochondral Ossification, 273 Intramembranous Ossification, 275 Skeletal Dysplasias, 275 Birth Prevalence and Contribution to Perinatal Mortality, 275 Classification…
Outline Normal Sonographic Anatomy of the Fetal Face, 243 Craniofacial Anomalies, 245 Typical Facial Clefts, 245 Atypical Facial Clefts, 250 Orbital and Ocular Defects, 252 Micrognathia and Retrognathia, 255 Macroglossia,…
Outline Embryology, 346 Embryonic Phase, 349 Pseudoglandular Phase, 349 Canalicular Phase, 349 Saccular Phase, 349 Alveolar Phase, 349 Key Features for Assessment, 349 Pulmonary Hypoplasia, 350 Congenital Pulmonary Airway Malformation,…
Outline Embryology, 460 Esophagus and Stomach, 461 Esophageal Atresia, 461 Small Intestine, 465 Duodenal Obstruction, 465 Echogenic Bowel, 465 Jejunoileal Obstruction, 469 Meconium Peritonitis, 470 Rectum, 471 Anorectal Malformations, 471…
Outline Embryology of Twins, 132 Pregnancy Dating, 133 Chorionicity, 135 Nuchal Translucency, 137 Anatomic Survey, 138 Placental Evaluation, 139 Cervical Length, 140 Fetal Growth Studies, 140 Serial Surveillance, 143 Monoamniotic…
Outline Structural Abnormalities, 58 First Trimester Markers of Aneuploidy, 63 Nuchal Translucency, 63 Cystic Hygroma, 67 Absent Nasal Bone, 67 Ductus Venosus Doppler Studies, 68 Tricuspid Regurgitation, 69 Frontomaxillary Facial…
Outline Embryology, 221 Ventriculomegaly, 222 Neural Tube Defects, 222 Midline Anomalies, 225 Cystic and Cyst-like Abnormalities of the Posterior Fossa, 229 Intrauterine Cerebral Injuries, 231 Microcephaly, 231 Intracranial Cysts and…
Outline Normal Transvaginal Sonographic Findings in the Early First Trimester, 83 Confirmation or Exclusion of Intrauterine Pregnancy When No Yolk Sac or Embryo Is Seen, 84 Ultrasound Demonstrates No Intrauterine…
