Evaluation of Hepatopulmonary Syndrome with Technetium-99m Macroaggregated Albumin Scintigraphy. 2022

Fathima Fijula Palot Manzil, and Iqbal Haq, and Xiaofei Wang
University of Arkansas for Medical Sciences (UAMS), United States.

Hepatopulmonary syndrome (HPS) is characterized by intrapulmonary vascular dilatation causing hypoxemia in patients with liver disease. Technetium-99m macroaggregated albumin (99mTc-MAA) scintigraphy have diagnostic value in suspected HPS by detecting clinically significant right to left shunt. In presence of cirrhosis, MAA scan with extra-pulmonary organs visualization is specific of intrapulmonary shunting. MAA scintigraphy also provides added value of quantification of the shunt.

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