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…
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 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…
This section discusses the normal magnetic resonance (MR) imaging appearance of the brains of children after term delivery up to the age of 18 months. We illustrate this topic with…
