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MVOV - maximal venous outflow velocity - and iliac vein obstruction due to May Thurner Syndrome
Monday, November 26, 2012


Duplex venous ultrasonography does not and rarely (if ever) diagnoses the May Thurner syndrome. 


The authors of a recent study investigated MVOV (maximal venous outflow velocity) as an index to ileocaval obstruction.


Dr. Jones and colleagues from the Division of Vascular Surgery, Department of Surgery, University of Tennessee Medical Center, Knoxville, TN published the study in the Annals of Vascular Surgery (volume 26, page 1106-1113).


Study Conclusions: "Duplex-derived MVOV measurements are helpful for detection of iliocaval venous obstruction, such as MTS. Right-to-left MVOV ratios and postengorgement spectral analysis are helpful adjuncts to duplex imaging for leg swelling. The MVOV maneuvers are well tolerated by patients and yields physiological data regarding central venous obstruction that computed tomography and magnetic resonance imaging fail to detect".

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