Prenatal Imaging: The primary purpose of sonography in pregnancy is to visualize, assess, and monitor the development, growth, anatomy, and well-being of the fetus, placenta, amniotic fluid, and maternal structures throughout the pregnancy, providing valuable insights, diagnostic information, and clinical data to guide obstetric care, management, interventions, and preparations for childbirth.
Procedure:
Imaging Technique: Sonography employs a transducer, which emits and receives sound waves, to generate images of the fetus and maternal structures by transmitting sound waves into the body, capturing their reflections, and converting the echoes into visual images displayed on a monitor for real-time observation, evaluation, and interpretation by healthcare providers, radiologists, or specialists with expertise in obstetric sonography.
Transabdominal and Transvaginal Approaches: Depending on the gestational age, fetal position, maternal anatomy, or specific clinical indications, sonography may be performed using transabdominal (external) or transvaginal (internal) approaches to optimize visualization, access, and imaging quality during the procedure, ensuring comprehensive coverage, detailed assessments, and accurate evaluations based on individual circumstances, preferences, or clinical considerations.
Types of Obstetric Sonography:
Dating Ultrasound: Typically performed in early pregnancy to estimate gestational age, confirm the viability of the pregnancy, assess the number of fetuses, and provide foundational information for prenatal care, timeline adjustments, or clinical evaluations based on individual circumstances or specific indications.
Anatomy Scan (Level II Ultrasound): Conducted around 18-20 weeks of gestation, this detailed ultrasound evaluates the fetal anatomy, structures, organs, and systems, identifies potential abnormalities, confirms fetal growth, development, and well-being, and guides subsequent interventions, consultations, or specialized evaluations as needed.
Growth Ultrasound: Performed at various stages of pregnancy to monitor fetal growth, size, development, assess amniotic fluid levels, evaluate placental function, or detect potential complications, providing valuable data, trends, or insights to support individualized care, management, or interventions tailored to maternal and fetal needs, circumstances, or clinical considerations.