A 64-year-old woman with a history of cirrhosis and progressive difficulty breathing underwent pulmonary ventilation/perfusion SPECT to evaluate possible pulmonary embolism. The images demonstrated multiple mismatched ventilation/perfusion defects in both lungs, suggesting pulmonary embolism. However, there was also Tc-99m-MAA radioactivity in the brain and bilateral kidney, with a right-to-left shunting rate of 8.8%. In addition, CT pulmonary angiography did not demonstrate embolus. The findings indicated that perfusion defects were caused by hepatopulmonary syndrome.
基金：
National Key Research and Development Plan [2017YFC0114003]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [81771860, 81971642]
第一作者单位：[1]From the Department of Nuclear Medicine, Beijing Friendship Hospital of Capital Medical University, Beijing, China.
通讯作者：
通讯机构：[1]From the Department of Nuclear Medicine, Beijing Friendship Hospital of Capital Medical University, Beijing, China.[*1]Nuclear Medicine, Department of Beijing Friendship Hospital affiliated to Capital Medical University, 95 Yong An Road, Xi Cheng District, 100050 Beijing, China.
