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 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 Fetal Development in the First Trimester, 98 Embryonic Period (Weeks 4-9 Post Conception), 99 Fetal Period (Weeks 9-14), 101 Normal Ultrasound Findings in the First Trimester, 101 Head 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…
Outline Genetics and Birth Defects, 25 Developmental Disorders: Causes, Mechanisms, and Patterns, 25 Chromosomal Defects, 27 Abnormalities of Chromosome Number, 27 Trisomy 21, 27 Trisomy 18, 28 Trisomy 13, 28…
Outline Assignment of Gestational Age, 119 First Trimester Dating, 119 Second and Third Trimester Dating, 119 Measurements, 119 Assigning Gestational Age in the Second and Third Trimesters, 121 Fetal Weight…
Outline Safety of Ultrasound Examination, 3 Indications for Obstetric Ultrasound Examination, 4 Who Should Perform the Ultrasound Examination and How Should It Be Performed?, 5 Nonmedical Use of Ultrasonography, 5…
