Initial study of dual energy lung perfusion imaging using dual-source CT
- VernacularTitle:双源CT双能量肺灌注成像的初步观察
- Author:
Longjiang ZHANG
;
Guangming LU
;
Wei HUANG
;
Jun CAI
;
Changsheng ZHOU
;
Yane ZHAO
;
Peng CHEN
- Publication Type:Journal Article
- Keywords:
Lung;
Tomography,X-ray computed;
Perfusion;
Diagnostic imaging
- From:
Chinese Journal of Radiology
2008;42(11):1183-1186
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the clinical values of dual energy lung perfusion using dual-source CT. Methods Fifty-four patients who underwent chest contrast-enhanced CT were included in this study from May to August in 2007. Dual energy CT scanning was performed in all patients. The patients were divided into four groups: normal group, exudation lesion group, mass lesion group, and pulmonary embolism group. Imaging appearances of dual energy CT perfusion in four groups were analyzed. Results Dual energy CT showed symmetrical homogeneous perfusion in healthy subjects (n = 14), exudation lesions (n =10) appeared as low perfusion, In mass lesions (n =27), peripheral masses presented as local perfusion defect, central masses appeared as segmental perfusion defect because of the involvement of hilar vessels,and pulmonary embolism (n = 3) appeared as perfusion defect in corresponding pulmonary segment.Conclusion Dual energy CT scanning can be used to show the pulmonary perfusion status and assess the pulmonary perfusion abnormalities in central lung cancer and pulmonary embolism.
