Contents Part I Echoscopic Assessment of Pregnancy Chapter 1 Normal Course of Pregnancy . 20 a) Gestational Age . . . . . . . . . . . 20 Early Gestations from the 6th to 8th Week 20 Early Gestations from the 9th to 11th Week. 22 Size of the Fetal Head from the 12th to 15th Week. 28 Size of the Fetal Head from the 16th to 24th Week. 30 Size of the Fetal Head from the 26th to 32nd Week. 32 Size of the Fetal Head from the 34th to 40th Week. 34 Twin Pregnancies from the 7th to 10th Week 36 Twin Pregnancies from the 11th to 14th Week 38 Twin Pregnancies from the 15th to 24th Week 40 Twin Pregnancies from the 26th to 38th Week 42 b) Fetus. . . . . . . . . . . . . . . . . . 44 Determination of the" Biparietal" Diameter of the Fetal Head 44 Various Normal Shapes of the Fetal Head. . . . . . . . 46 Documentation of the Whole Fetus in Advanced Pregnancy 50 Intrauterine Exploration of the Fetal Abdomen . . . . . 52 c) Placenta. . . . . . . . . . . . . . . . . . . . . . . 54 Retraction of the Placenta in Cases of Low Anterior Placentation 54 Retraction of the Placenta in Cases of Low Posterior Placentation 56 Site of Placentation. . 58 Posterior Placentation. . . . . . . . . . . . . . 62 Fundal Placentation . . . . . . . . . . . . . . 64 Various Echoscopic Findings of Placental Structures 66 Chapter 2 Abnormal Findings during Pregnancy . 68 a) Uterus Arcuatus . . . . . . . 68 Uterus Arcuatus and Pregnancy 68 b) Hysteromyoma. . . . . . . . 72 Hysteromyoma and Pregnancy. 72 c) Ovarian Cysts . . . . . . . . 74 Pregnancies with Ovarian Cysts 74 Chapter 3 Pathological Course of Pregnancy 76 a) Abortion . . . . . . . . . . . . . . . 76 Various Kinds of Abortions. . . . . . .