Public Release: 

Widespread use of teleradiology services could be declining

American College of Radiology

Researchers have found recent evidence that shows the growth of external, off-hours teleradiology services (EOTSs) has slowed in recent years, despite a significant increase in the number of radiology practices using those services between 2003 and 2007, according to a study in the November issue of the American Journal of Roentgenology.

The data collected showed that the number of radiology practices using EOTSs increased from 15 percent to 44 percent between 2003 and 2007. Patterns of use were generally as might be expected; however nonmetropolitan practices, which might be expected to have high odds of using EOTSs, did not.

In spite of predictions that the market for EOTSs will continue to expand, researchers commented on recent evidence that may suggest otherwise. "Data on the number of examinations performed taken from recent quarterly reports of the largest firm in the industry, Nighthawk Radiology Services, suggests slower growth," said Rebecca Lewis, lead author of the study. In addition, a survey of a convenience sample of radiology practice leaders, found extremely few were using teleradiology firms for daytime reads or subspeciality interpretations, although providing these services is a prominent expansion strategy of the industry. Also, a considerable number of practices that had been using teleradiology services EOTSs were no longer doing so.

Authors concluded that the use of EOTSs was widespread by 2007. However the use of EOTSs could be on the decline. Further research is needed to clarify future trends.


This study appears in the November issue of the American Journal of Roentgenology. For a copy of the full study, please contact Heather Curry via email at or at 703-390-9822.

About ARRS

The American Roentgen Ray Society (ARRS) was founded in 1900 and is the oldest radiology society in the United States. Its monthly journal, the American Journal of Roentgenology, began publication in 1906. Radiologists from all over the world attend the ARRS annual meeting to participate in instructional courses, scientific paper presentations and scientific and commercial exhibits related to the field of radiology. The Society is named after the first Nobel Laureate in Physics, Wilhelm Röentgen, who discovered the x-ray in 1895.

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