Diagnostic value of 99Tcm-MAA dynamic-whole body-local lung perfusion imaging in unexplained dyspnea
10.13929/j.1003-3289.201902048
- Author:
Meixin ZHAO
1
Author Information
1. Department of Nuclear Medicine, Peking University Third Hospital
- Publication Type:Journal Article
- Keywords:
Dyspnea;
Lung;
Perfusion imaging;
Radionuclide imaging
- From:
Chinese Journal of Medical Imaging Technology
2019;35(11):1669-1672
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the differential diagnostic value of 99Tcm-MAA dynamic-whole body-local lung perfusion imaging in unexplained dyspnea. Methods: Nineteen patients with unexplained dyspnea underwent 99Tcm-MAA dynamic-whole body-local lung perfusion imaging. The imaging results were analyzed based on the discharged diagnosis. Results: A total of 13 patients were diagnosed as intrapulmonary shunt, 9 of them were diagnosed as hepatopulmonary syndrome, the other 4 patients included 1 case of hereditary telangiectasia and 3 cases of intrapulmonary shunt were with unknown causes. All patients were excluded from pulmonary embolism. Conclusion: 99Tcm-MAA dynamic-whole body-local lung perfusion imaging can simultaneously diagnose or exclude pulmonary shunt and pulmonary embolism, and can be widely used in clinical practice.
