Heparin-induced thrombocytopenia MRI: Difference between revisions
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{{Heparin-induced thrombocytopenia}} | {{Heparin-induced thrombocytopenia}} | ||
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==Overview== | ==Overview== | ||
There is no specific role for MRI in diagnosis of HIT. However, MRI can be useful to help delineate a bleeding or thrombotic complication of HIT in a specific anatomical area, similar to the role of a CT scan. MRI offers better anatomical detail and is thus more sensitive that CT scan. However, the test is more expensive, so one must weigh the cost-benefit ratio. MRI is particularly useful for suspected [[dural venous sinus]] thrombosis. | |||
==MRI== | ==MRI== | ||
There is no specific role for MRI in diagnosis of HIT. However, MRI of a particular anatomic area can help better delineate thrombosis or bleeding if a CT with contrast (CT angiography) cannot be performed. For example, if a patient has renal dysfunction that precludes use of iodinated contrast with CT scan, MRI may be useful. | |||
* '''MRI brain with venography''': This can help diagnose a [[cerebral venous thrombosis]]. MRI is the gold standard test for diagnosis of [[cerebral venous thrombosis]] or [[dural venous sinus thrombosis]].<ref name="pmid22368772">{{cite journal| author=Chiewvit P, Piyapittayanan S, Poungvarin N| title=Cerebral venous thrombosis: diagnosis dilemma. | journal=Neurol Int | year= 2011 | volume= 3 | issue= 3 | pages= e13 | pmid=22368772 | doi=10.4081/ni.2011.e13 | pmc=3286153 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22368772 }} </ref> CT scan will not reveal a thrombosis with as great anatomical detail. | |||
* '''MRI abdomen or pelvis''': This can help reveal intra-abdominal or intrapelvic bleeding or thrombosis. However, a CT scan is able to reveal these conditions at a much lower cost. | |||
* '''MRI of the extremities''': MRI is particularly useful for delineating soft tissue abnormalities, such as bleeding into musculature or nerves. | |||
==Reference== | ==Reference== | ||
Latest revision as of 21:16, 1 August 2017
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Heparin-induced thrombocytopenia |
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Differentiating Heparin-induced thrombocytopenia from other Diseases |
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Diagnosis |
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Treatment |
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Case Studies |
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Heparin-induced thrombocytopenia MRI On the Web |
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American Roentgen Ray Society Images of Heparin-induced thrombocytopenia MRI |
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Directions to Hospitals Treating Heparin-induced thrombocytopenia |
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Risk calculators and risk factors for Heparin-induced thrombocytopenia MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Shyam Patel [2]
Overview
There is no specific role for MRI in diagnosis of HIT. However, MRI can be useful to help delineate a bleeding or thrombotic complication of HIT in a specific anatomical area, similar to the role of a CT scan. MRI offers better anatomical detail and is thus more sensitive that CT scan. However, the test is more expensive, so one must weigh the cost-benefit ratio. MRI is particularly useful for suspected dural venous sinus thrombosis.
MRI
There is no specific role for MRI in diagnosis of HIT. However, MRI of a particular anatomic area can help better delineate thrombosis or bleeding if a CT with contrast (CT angiography) cannot be performed. For example, if a patient has renal dysfunction that precludes use of iodinated contrast with CT scan, MRI may be useful.
- MRI brain with venography: This can help diagnose a cerebral venous thrombosis. MRI is the gold standard test for diagnosis of cerebral venous thrombosis or dural venous sinus thrombosis.[1] CT scan will not reveal a thrombosis with as great anatomical detail.
- MRI abdomen or pelvis: This can help reveal intra-abdominal or intrapelvic bleeding or thrombosis. However, a CT scan is able to reveal these conditions at a much lower cost.
- MRI of the extremities: MRI is particularly useful for delineating soft tissue abnormalities, such as bleeding into musculature or nerves.
Reference
- ↑ Chiewvit P, Piyapittayanan S, Poungvarin N (2011). "Cerebral venous thrombosis: diagnosis dilemma". Neurol Int. 3 (3): e13. doi:10.4081/ni.2011.e13. PMC 3286153. PMID 22368772.