| The use of deep inspiration preceding the Valsalva maneuver and rapid expiration in color Doppler imaging of the lower extremity veins. | |
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MedLine Citation:
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PMID: 8111682 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Deep inspiration preceding Valsalva maneuver and rapid expiration immediately following it (DIVE) enhance venous blood flow on color Doppler flow imaging (CDI). The effect of DIVE was assessed in 115 consecutive lower extremity examinations. Of these, 95 or 115 (83%) had negative CDI sonograms, and 20 of 115 (17%) had partially (six of 115) or completely (14 of 115) occluding deep vein thrombosis. DIVE enhanced venous blood flow in 68% of the negative cases, resulting in transient venous distention, and/or more complete color filling, and/or greater spectral flow velocities. The 14 cases with completely occluding thrombi showed no response to DIVE. Six cases with partially occluding thrombi showed moderate to mild response to DIVE, with improved color delineation of the residual patent lumen around the thrombus. The authors conclude that DIVE facilitates deep venous CDI, especially when compression cannot be used to augment venous flow. |
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Authors:
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J Gao; E Kazam; W Rubenstein; J P Whalen; T Hom |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Clinical imaging Volume: 17 ISSN: 0899-7071 ISO Abbreviation: Clin Imaging Publication Date: 1993 Oct-Dec |
Date Detail:
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Created Date: 1994-03-31 Completed Date: 1994-03-31 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8911831 Medline TA: Clin Imaging Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 266-8 Citation Subset: IM |
Affiliation:
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Department of Radiology, Cornell Medical Center/New York Hospital, New York 10021. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Blood Flow Velocity Humans Leg / blood supply*, ultrasonography Phlebography Respiration* Thrombophlebitis / ultrasonography* Valsalva Maneuver* Venous Insufficiency / ultrasonography |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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