Deep vein thrombosis other imaging findings: Difference between revisions
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can reveal a [[blood clot]] and its extent (i.e. whether it is below or above the [[knee]]). | can reveal a [[blood clot]] and its extent (i.e. whether it is below or above the [[knee]]). | ||
==References== | ==References== | ||
Revision as of 20:21, 18 May 2012
Editors-in-Chief: C. Michael Gibson, M.S., M.D. Associate Editor-In-Chief: Ujjwal Rastogi, MBBS [1]
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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
- 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.
- Doppler ultrasonography
- 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
- ↑ 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.
- ↑ Line BR (2001). "Pathophysiology and diagnosis of deep venous thrombosis". Semin Nucl Med. 31 (2): 90–101. PMID 11330789.