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ARTICLE |

DVT Equals Deep Venous Thrombosis?

James C. Kraner, MD, PhD
Arch Intern Med. 1987;147(8):1511. doi:10.1001/archinte.1987.00370080149028.
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To the Editor.  —Increasingly medical literature can be noted statestate-mentplethysmographyPG) tests that yield positive results on the lower extremities are indicative95% accuracy in some vascular laboratories) of deep venous thrombosis (DVT), while suspected DVT might be ruled out by negative results on IPG.1this connotation, DVT refers only to results confirmed, or not confirmed, by IPG. There would be no pause to contest this concept, providing all who read the article understand this concept's inherent limitations.Impedance plethysmography providesrmation only about the commond external iliac, femoral, and popliteal veins. When using DVT in this context, it should be so indicated in order that readers would understand that IPG provides no information about the deep veins distal to the popliteal veins, such as the deep veins of the calf.The deep calf veins have anatomy that is variable in different individuals but, generally, there are three pairs of veins arranged

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