Volume 114, Issue 2, Pages (February 1998)

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Volume 114, Issue 2, Pages 305-310 (February 1998) Use of macroaggregated albumin lung perfusion scan to diagnose hepatopulmonary syndrome: A new approach Gary A. Abrams, Navin C. Nanda, Eva V. Dubovsky, Michael J. Krowka, Michael B. Fallon Gastroenterology Volume 114, Issue 2, Pages 305-310 (February 1998) DOI: 10.1016/S0016-5085(98)70481-0 Copyright © 1998 American Gastroenterological Association Terms and Conditions

Fig. 1 (A) A normal MAA shunt fraction (2%) with regions of interest drawn around the posterior lungs and cerebrum. (B) An abnormal MAA shunt fraction (50%) showing radioactivity in the cerebrum. The range of radioactive intensity is low (red), moderate (yellow), and high (white). Gastroenterology 1998 114, 305-310DOI: (10.1016/S0016-5085(98)70481-0) Copyright © 1998 American Gastroenterological Association Terms and Conditions

Fig. 2 The long line represents a normal shunt fraction value of ≤6%; short lines are mean values. P < 0.001 for patients with HPS compared with cirrhotic patients without HPS and hypoxemic subjects with intrinsic lung disease as determined by Kruskal–Wallis nonparametric analysis of variance. CE, contrast echocardiogram. Gastroenterology 1998 114, 305-310DOI: (10.1016/S0016-5085(98)70481-0) Copyright © 1998 American Gastroenterological Association Terms and Conditions

Fig. 3 Correlation of the MAA shunt fraction with (A) room air arterial oxygenation, (B) alveolar-arterial gradient, and (C) arterial PO2 while breathing 100% oxygen in 25 patients with HPS. Gastroenterology 1998 114, 305-310DOI: (10.1016/S0016-5085(98)70481-0) Copyright © 1998 American Gastroenterological Association Terms and Conditions

Fig. 4 Diagnostic approach to HPS. Gastroenterology 1998 114, 305-310DOI: (10.1016/S0016-5085(98)70481-0) Copyright © 1998 American Gastroenterological Association Terms and Conditions