Deep vein thrombosis CT: Difference between revisions
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{{Deep vein thrombosis}} | {{Deep vein thrombosis}} | ||
==Overview== | ==Overview== | ||
Venous thrombosis in the proximal deep veins is responsible for more than 90% of the [[pulmonary embolism]]s. Some of the investigators have suggested combined use of CT PE protocol and CT scan venography in cases of suspected [[DVT]] and [[PE]].<ref name="pmid15051664">{{cite journal| author=Kanne JP, Lalani TA| title=Role of computed tomography and magnetic resonance imaging for deep venous thrombosis and pulmonary embolism. | journal=Circulation | year= 2004 | volume= 109 | issue= 12 Suppl 1 | pages= I15-21 | pmid=15051664 | doi=10.1161/01.CIR.0000122871.86662.72 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15051664 }} </ref> However, it is not done routinely in clinical settings because of certain limitations: | Venous thrombosis in the proximal deep veins is responsible for more than 90% of the [[pulmonary embolism]]s. Some of the investigators have suggested combined use of CT PE protocol and CT scan venography in cases of suspected [[DVT]] and [[PE]].<ref name="pmid15051664">{{cite journal| author=Kanne JP, Lalani TA| title=Role of computed tomography and magnetic resonance imaging for deep venous thrombosis and pulmonary embolism. | journal=Circulation | year= 2004 | volume= 109 | issue= 12 Suppl 1 | pages= I15-21 | pmid=15051664 | doi=10.1161/01.CIR.0000122871.86662.72 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15051664 }} </ref> | ||
==CT== | |||
===Uses=== | |||
It is preferred over contrast [[Deep vein thrombosis venography|venography]] as there is no need to cannulate the foot veins. In the following setting: | |||
* [[Deep vein thrombosis ultrasound|Compression ultrasonography]] can be impractical in cases of excessive [[swelling]], [[edema]], or a leg cast. | |||
===Limitations=== | |||
However, it is not done routinely in clinical settings because of certain limitations: | |||
* Side effects of IV contrast administration | * Side effects of IV contrast administration | ||
* Expensive modality | * Expensive modality | ||
; | ; Routine use is not recommended. (Class I - Level of evidence B) | ||
==Example== | ==Example== | ||
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</gallery> | </gallery> | ||
</div> | </div> | ||
==References== | ==References== | ||
Revision as of 18:44, 12 October 2012
Editor(s)-In-Chief: The APEX Trial Investigators, C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Cafer Zorkun, M.D., Ph.D. [2] ; Kashish Goel, M.D.; Assistant Editor(s)-In-Chief: Justine Cadet
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Deep Vein Thrombosis Microchapters |
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Deep vein thrombosis CT On the Web |
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Risk calculators and risk factors for Deep vein thrombosis CT |
Overview
Venous thrombosis in the proximal deep veins is responsible for more than 90% of the pulmonary embolisms. Some of the investigators have suggested combined use of CT PE protocol and CT scan venography in cases of suspected DVT and PE.[1]
CT
Uses
It is preferred over contrast venography as there is no need to cannulate the foot veins. In the following setting:
- Compression ultrasonography can be impractical in cases of excessive swelling, edema, or a leg cast.
Limitations
However, it is not done routinely in clinical settings because of certain limitations:
- Side effects of IV contrast administration
- Expensive modality
- Routine use is not recommended. (Class I - Level of evidence B)
Example
- CT images: DVT at left leg
References
- ↑ Kanne JP, Lalani TA (2004). "Role of computed tomography and magnetic resonance imaging for deep venous thrombosis and pulmonary embolism". Circulation. 109 (12 Suppl 1): I15–21. doi:10.1161/01.CIR.0000122871.86662.72. PMID 15051664.