<unk>  in Moscow, Russia, 2016 Below are useful terms on ultrasound: * Echogenic — giving rise to reflections (echoes) of ultrasound waves * Hyperechoic – more echogenic (brighter) than normal * Hypoechoic – less echogenic (darker) than normal * Isoechoic – the same echogenicity as another tissue * Transvaginal ultrasonography – Ultrasound is performed through the vagina * Transabdominal ultrasonography – Ultrasound is performed across the abdominal wall or through the abdominal cavity In normal state, each body tissue type, such as liver, spleen or kidney, has a unique echogenicity. Fortunately, gestational sac, yolk sac and embryo are surrounded by hyperechoic (brighter) body tissues.
Obstetric ultrasonography
Fertility testing
Vaginal ultrasonography
Postcoital test
Gynecologic ultrasonography
Hysterosalpingography
Karyotype
Fetal echocardiography