Deep vein thrombosis MRI: Difference between revisions
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==Overview== | ==Overview== | ||
Noninvasive technique like ultrasonography and impedance plethysmography are fairly accurate ways to diagnose deep-vein thrombosis (DVT) in the legs. But, both tests miss calf-vein thromboses, repeat testing often is required when initial tests are negative, and ability to assess pelvic veins is limited. Magnetic resonance venography has an important role in diagnosis when contrast venography cannot be performed due to patients allergy to contrast material or in renal insufficiency. | Noninvasive technique like ultrasonography and impedance plethysmography are fairly accurate ways to diagnose deep-vein thrombosis (DVT) in the legs. But, both tests miss calf-vein thromboses, repeat testing often is required when initial tests are negative, and ability to assess pelvic veins is limited. Magnetic resonance venography has an important role in diagnosis when contrast venography cannot be performed due to patients allergy to contrast material or in renal insufficiency. Magnetic resonance venography had 100% sensitivity and 96% specificity. | ||
{{main|Magnetic resonance angiography}} | {{main|Magnetic resonance angiography}} | ||
Revision as of 02:57, 28 December 2011
Editors-in-Chief: C. Michael Gibson, M.S., M.D. Associate Editor-In-Chief: Ujjwal Rastogi, MBBS [1]
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Overview
Noninvasive technique like ultrasonography and impedance plethysmography are fairly accurate ways to diagnose deep-vein thrombosis (DVT) in the legs. But, both tests miss calf-vein thromboses, repeat testing often is required when initial tests are negative, and ability to assess pelvic veins is limited. Magnetic resonance venography has an important role in diagnosis when contrast venography cannot be performed due to patients allergy to contrast material or in renal insufficiency. Magnetic resonance venography had 100% sensitivity and 96% specificity.