Prospective comparison of computed tomography and duplex sonography in the evaluation of recently inserted Kimray-Greenfield filters into the inferior vena cava.
A prospective comparison of contrast-enhanced computed tomography (CT) and duplex sonography (DS) was performed to examine the Kimray-Greenfield filter in the inferior vena cava (IVC) in the immediate postoperative period. Fourteen patients were studied for five complications: IVC thrombosis, malpositioning, pericaval hematoma, filter angulation, and prong perforation. Our results found CT to be more efficacious because it was a) able to evaluate more patients with fewer technically inadequate scans and b) more definitive in all categories. However, when visualized, DS was as accurate as CT in the evaluation of thrombosis.
Guglielmo
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FF
Department of Radiology, Jefferson Medical College and Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107.
Kurtz
A B
AB
Wechsler
R J
RJ
D006801:Humans; D011183:Postoperative Complications / Q000175:diagnosis*; D011184:Postoperative Period; D011446:Prospective Studies; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D016306:Vena Cava Filters; D014682:Vena Cava, Inferior