RT Journal Article SR Electronic T1 Miscalculated Lung Shunt Fraction for Planning of Hepatic Radioembolization JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP jnmt.119.234385 DO 10.2967/jnmt.119.234385 A1 Caskey, Justin S A1 Kay, Matthew Derek A1 McMillan, Natalie A A1 Kuo, Phillip H A1 Woodhead, Gregory J YR 2019 UL http://tech.snmjournals.org/content/early/2019/12/03/jnmt.119.234385.abstract AB Yttrium-90 radioembolization is a safe and efficacious treatment option for many patients with unresectable hepatocellular carcinoma. Potential candidates for radioembolization, based on clinical criteria, undergo technetium-99m labeled macroaggregated albumin imaging to determine the extent of hepatopulmonary shunting. Dose selection is based on results from shunt imaging and can exclude patients from radioembolization therapy. We present a case of miscalculated lung shunt fraction and the circumstances that led to the critical error.