 Beginning in 1951, the first pediatric cardiac catheterization laboratory in Indiana opened at Riley.After opening the laboratory, the hospital was the first in the nation to carry out percutaneous cardiac catheterization in children.In 1966, the hospital became the first in Indiana to use echocardiography, a test that uses sound waves to create a moving picture of the heart which is more detailed than an x-ray image and involves no exposure to radiation, to detect congenital heart defects.