锝-99m 聚合白蛋白闪烁扫描术评估肝肺综合征

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

作者信息

Palot Manzil Fathima Fijula, Haq Iqbal, Wang Xiaofei

机构信息

University of Arkansas for Medical Sciences (UAMS), United States.

出版信息

J Nucl Med Technol. 2022 May 24. doi: 10.2967/jnmt.122.264190.

DOI:10.2967/jnmt.122.264190

Abstract

Hepatopulmonary syndrome (HPS) is characterized by intrapulmonary vascular dilatation causing hypoxemia in patients with liver disease. Technetium-99m macroaggregated albumin (Tc-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.

摘要

肝肺综合征（HPS）的特征是肺部血管扩张，导致肝病患者出现低氧血症。锝-99m 大颗粒聚合白蛋白（Tc-MAA）闪烁扫描通过检测临床上有意义的右向左分流，对疑似 HPS 具有诊断价值。在肝硬化患者中，能显示肺外器官的 MAA 扫描是肺内分流的特异性表现。MAA 闪烁扫描还能对分流进行量化，提供额外价值。

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