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Evaluation of Hepatopulmonary Syndrome with 99mTc-Macroaggregated Albumin Scintigraphy
Fathima Fijula Palot Manzil1, Iqbal Haq2, Xiaofei Wang2
1Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, Arkansas drfijulasurjith@yahoo.com.
Abstract:
Hepatopulmonary syndrome is characterized by intrapulmonary vascular dilatation causing hypoxemia in patients with liver disease. 99mTc-macroaggregated albumin (99mTc-MAA) scintigraphy has diagnostic value in suspected hepatopulmonary syndrome by detecting a clinically significant right-to-left shunt. In the presence of cirrhosis, 99mTc-MAA scanning with extrapulmonary organ visualization is specific for intrapulmonary shunting. 99mTc-MAA scintigraphy also provides the added value of quantification of the shunt.
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