In the current era, echocardiography provides a comprehensive assessment of ASDs. From initial diagnosis, classification, and assessment of associated lesions, echocardiographic techniques have largely supplanted cardiac catheterization. Further, as the placement of transcatheter devices for shunt closure is becoming an increasingly popular alternative to surgical closure, echo-cardiography is rapidly expanding as an interventional tool. As cardiac ultrasound expands to intracardiac and three-dimensional technologies, its future role in the assessment of simple and complex congenital cardiac lesions will certainly continue to evolve.
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