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A Portrait of Interventional Radiologists in the United States

¹ Research Department, American College of Radiology, 1891 Preston White Dr., Reston, VA 20191.
² Department of Diagnostic Radiology, Yale University, New Haven, CT.

OBJECTIVE. In recognition of the emergence of interventional radiology as an important "new component of...radiology," the objective of our study was to provide an extensive and detailed portrait of interventional radiologists, their professional activities, and the practices in which they work.

MATERIALS AND METHODS. We tabulated data from the American College of Radiology's 2003 Survey of Radiologists, a stratified random-sample survey that oversampled interventionalists and achieved a 63% response rate with a total of 1,924 responses. Responses were weighted to make them representative of all radiologists in the United States. We compared information about interventionalists with that for other radiologists.

RESULTS. Depending on the definition of who is an interventionalist, 8.5–11.5% of radiologists are interventionalists. By most definitions, only slightly under half of interventionalists spend 70% or more of their clinical work time performing interventional procedures. Interventionalists work, on average, 56–58 hr weekly, a few hours longer than other radiologists. The average interventionalist performs procedures in five of the seven categories of procedures into which we divided interventional radiology, compared with one or two categories for other radiologists. The average interventionalist performs procedures in five of the seven broad categories (such as MRI, CT, and nuclear medicine) into which we divided all of radiology, much the same breadth of practice as other subspecialists and also as nonsubspecialists.

CONCLUSION. Interventionalists have become a sizable group within radiology. They are in some ways like other radiologists and in other ways different, but they do not spend as much of their time in their subspecialty as some assume and, overall, are not as different.

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