Advanced Topics on Three-dimensional Ultrasound in Obstetrics and Gynaecology

Advanced Topics on Three-Dimensional Ultrasound in Obstetrics and Gynecology is a comprehensive and handy guide for sonographers, obstetricians, gynecology and radiology professionals, and all ...
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Fetal Lung Volumes in Congenital Anomalies Using Three-dimensional Ultrasonography

Pp. 117-124 (8)

Rodrigo Ruano, Amirhossein Moaddab and Edward Araujo Junior

Abstract

The present chapter reviews the main technical aspects, indications and results of clinical use of three-dimensional ultrasonographic lung volumes. There are two methods to measure fetal lung volumes using three-dimensional ultrasonography: the technique of parallel slices and the rotational technique. Nowadays, the rotational technique is the method of choice because of reproducibility and less time consuming. Clinical indications for assessing fetal lung volumes are congenital anomalies or situations where there is an increased risk for severe pulmonary hypoplasia. Fetal lung volume is useful tool to diagnose pulmonary hypoplasia, but more important to predict the severity of this complication. Clinical situations that may benefit from fetal lung volume assessment are: congenital diaphragmatic hernia, fetal hyperechogenic lung lesions, omphalocele, premature rupture of the membranes and prolonged oligohydramnios (fetal renal/urological problems).

Keywords:

Congenital adenomatoid malformation, Congenital diaphragmatic hernia, Fetal lung volumes, Lower urinary tract obstruction, Oligohydramnios, Pulmonary hypoplasia, Pulmonary sequestration, Three-dimensional ultrasonography.

Affiliation:

Pavilion for Women - Texas Children`s Fetal Center, 6651 Main Street, Suite F1020, Houston, Texas, United States, 77030.