| Extra [corrected] pulmonary uptake of Tc-99m-MAA perfusion lung scan as a result of right to left intra cardiac shunt. | |
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MedLine Citation:
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PMID: 16767956 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Extra pulmonary accumulation of Tc-99m-macroaggregate of albumin (MAA) is rarely seen on perfusion lung scan, and has been reported in less than 4% of a study population of nearly 380 patients. It occurs when the agent bypasses the lungs due to a right to left (R-L) cardiac or pulmonary shunt, when it is shunted to the portal vein before reaching the right atrium and ventricle of the heart, and when the agent is degraded to a submicron particle size. When a pharmaceutical problem is excluded, extra-pulmonary uptake implies unusual hemodynamics with a shunt. A case is reported in which a clinically unsuspected shunt was diagnosed from the lung perfusion scintigraphy. |
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Authors:
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Riffat Hussain; Maseeh-uz-Zaman; Sohail Abrar Khan; M Nadeem Ahmad |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: JPMA. The Journal of the Pakistan Medical Association Volume: 56 ISSN: 0030-9982 ISO Abbreviation: J Pak Med Assoc Publication Date: 2006 May |
Date Detail:
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Created Date: 2006-06-13 Completed Date: 2006-07-25 Revised Date: 2008-02-12 |
Medline Journal Info:
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Nlm Unique ID: 7501162 Medline TA: J Pak Med Assoc Country: Pakistan |
Other Details:
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Languages: eng Pagination: 241-2 Citation Subset: IM |
Affiliation:
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Department of Radiology, Aga Khan University Hospital, Karachi. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Arteriovenous Fistula / physiopathology, radionuclide imaging* Female Heart Atria / abnormalities Heart Septal Defects, Atrial / physiopathology, radionuclide imaging* Humans Hypertension, Pulmonary / etiology* Lung / radionuclide imaging* Perfusion* Pulmonary Circulation* Pulmonary Veins / abnormalities Radiopharmaceuticals / diagnostic use* Technetium Tc 99m Aggregated Albumin / diagnostic use* |
| Chemical | |
Reg. No./Substance:
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0/Radiopharmaceuticals; 0/Technetium Tc 99m Aggregated Albumin |
| Comments/Corrections | |
Erratum In:
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J Pak Med Assoc. 2006 Jun;56(6):296 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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