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DOI:10.2214/AJR.08.2191
AJR 2009; 193:1656-1664
© American Roentgen Ray Society


Review

Coagulation Concepts Update

Stacy D. O'Connor1, Andrew J. Taylor2, Eliot C. Williams3 and Thomas C. Winter4

1 Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI.
2 Department of Radiology, Virginia Commonwealth University, PO Box 980615, Richmond, VA 23298.
3 Department of Internal Medicine, Section of Hematology, University of Wisconsin School of Medicine and Public Health, Madison, WI.
4 Department of Radiology, University of Utah, Salt Lake City, UT.

OBJECTIVE. Since the previous comprehensive radiology review on coagulation concepts that was done in 1990, many studies have been published in the medical and surgical literature that can guide the approach of a radiology practice. The purpose of this article is to provide an analysis of these works, updating the radiologist on proper use and interpretation of coagulation assessment tools, medications that modify the hemostatic system, and the use of transfusions prior to interventions.

CONCLUSION. The basic tools for coagulation assessment have not changed; however, results from subspecialty research have suggested ways in which the use of these tools can be modified and streamlined to safely reduce time and expense for the patient and the health care system.

Keywords: anticoagulation • bleeding • coagulation • intervention


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