Description: This module is Module 8 in a 13 Module Pediatric Echocardiography eCourse series. For information on the full Pediatric Echocardiography eCourse, please click here. This module covers Tetralogy of Fallot, D-transposition of the great arteries, congenitally corrected transposition of the great arteries, truncus arteriosus, and double outlet right ventricle. This is a very complex and highly variable group of congenital problems. The imaging and hemodynamic problems become more complex with this group of lesions.