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Imaging of Surgical Paraphernalia: What Belongs in the Patient and What Does Not¹

¹ From the Departments of Radiological Sciences (K.A.W., L.L.S., B.M.K.) and Orthopaedic Surgery (J.J.E.), University of California Los Angeles (UCLA) School of Medicine, 200 UCLA Medical Plaza, Suite 165-57, Los Angeles, CA 90095-6952. Presented as a scientific exhibit at the 1998 RSNA scientific assembly. Received October 27, 1999; revision requested December 7 and received February 14, 2000; accepted March 14. Address correspondence to K.A.W. (e-mail: kwolfson@bellsouth.net).

Many radiologists are not familiar with the names of various instruments, surgical sponges, and needles that may be seen on intraoperative and postoperative radiographs. These devices may be intentionally placed for localization or therapeutic intervention, discovered on radiographs obtained to evaluate incorrect sponge or needle counts, or incidentally encountered on postoperative radiographs. These paraphernalia are usually described in vague nonspecific terms in radiology reports. In this article, photographs and radiographs of several instruments commonly used for intraoperative localization or therapy are presented, as well as examples of sponges, needles, and other devices that should not be found on postoperative radiographs. Familiarity with their appearances will allow a more precise and knowledgeable description in radiology reports.

Index Terms: Foreign bodies, **.458² • Radiology and radiologists, iatrogenic injury • Surgery, complications, **.458

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