Lung perfusion imaging in hepatopulmonary syndrome using 99mTc macroaggregated albumin

Academic Article


  • Hepatopulmonary syndrome is a serious pulmonary vascular complication in patients with chronic liver disease. It constitutes a triad of chronic liver disease, increased alveolar-arterial oxygen gradient, and evidence of intrapulmonary shunt (IPS). The diagnosis of IPS can be made by bubble echocardiography, technetium-99m-labeled macroaggregated albumin ( 99m Tc-MAA) scintigraphy or pulmonary arteriography. Though echocardiography is a sensitive screening test, MAA scintigraphy can also quantify the extent of shunting. © 2014 American Society of Nuclear Cardiology.
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    Author List

  • Surasi DS; Manapragada P; Bhambhvani P