Deep vein thrombosis other imaging findings

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Editors-in-Chief: C. Michael Gibson, M.S., M.D. Associate Editor-In-Chief: Ujjwal Rastogi, MBBS [1]

Deep Vein Thrombosis Microchapters

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Differentiating Deep vein thrombosis from other Diseases

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Overview

A number of invasive and non-invasive approaches are possible.[1] Doppler ultrasonography, due to its high sensitivity, specificity and reproducibility, has replaced venography as the most widely used test in the evaluation of the disease.

Imaging Techniques

  1. Impedance plethysmography[2] : A venous thrombosis alters the normal response to temporary venous obstruction in a highly characteristic way. It causes a delay in emptying of the venous system after the release of the tourniquet.
  2. Doppler ultrasonography
  3. Compression ultrasound scanning of the leg veins, combined with duplex measurements (to determine blood flow)

can reveal a blood clot and its extent (i.e. whether it is below or above the knee).

References

  1. Snow V, Qaseem A, Barry P, Hornbake ER, Rodnick JE, Tobolic T; et al. (2007). "Management of venous thromboembolism: a clinical practice guideline from the American College of Physicians and the American Academy of Family Physicians". Ann Intern Med. 146 (3): 204–10. PMID 17261857.
  2. Line BR (2001). "Pathophysiology and diagnosis of deep venous thrombosis". Semin Nucl Med. 31 (2): 90–101. PMID 11330789.

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