The transmission and interpretation of emergency department radiographs.

Twenty-five radiographic studies representative of the spectrum of trauma cases that might present to an emergency department were selected from actual cases presenting at Brooke Army Medical Center (BAMC) in San Antonio, Texas. The studies were then transmitted from a local television studio via satellite back to BAMC and three other Army hospitals. A panel of 29 physicians (11 radiologists, 7 emergency physicians, and 11 others from various specialty areas) viewed the images on commercial grade television sets and attempted to make a diagnosis. The diagnostic accuracy of the radiologists (86%) was significantly better than that of the other two groups (77% each). However, given the overall expense of a teleradiology network, this difference in accuracy - especially when translated into clinically significant errors - might not justify the establishment of such a network in terms of cost-effectiveness.