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- W3149042384 abstract "Objective To prospectively evaluate the feasibility of dual-source computed tomography(DSCT) dual energy perfusion imaging(DEPI) for assessment of the severity of acute pulmonary embolism(APE).Methods The data of twenty-four patients who underwent DSCT scan were analyzed by Lung PBV software.Computed tomography pulmonary angiography(CTPA) and DEPI was obtained.Dual energy CT pulmonary perfusion defect index,CT pulmonary angiographic obstruction index,and right ventricular maximal short axis to left ventricular maximal short axis ratio(RV/LV) were separately calculated by DEPI and CTPA.Spearman correlation coefficient was used to assess the correlation of the 3 indexes.The patients were divided into severe APE group(n=9) and non-serious APE group(n=15) according to the severity of APE.The difference of the 3 indexes was compared between severe APE group and non-serious APE group.Results The median of perfusion defect index,obstruction index and RV/LV in severe APE group was respectively 32.5%(15.0%-62.5%),45.0%(27.5%-75.0%) and 1.16(1.04-1.45),while in non-serious group it was 12.5%(0%-37.5%),12.5%(2.5%-42.5%) and 1.03(0.85-1.41) respectively.The 3 indexes were higher in severe APE group than in non-serious APE group with significant statistical differences(P0.05).The perfusion defect index had moderate correlation with RV/LV(r=0.635,P0.05),and better correlation with CTPA obstruction index(r=0.790,P0.05).Conclusion DEPI of the dual-source CT is feasible to assess the severity of acute pulmonary embolism." @default.
- W3149042384 created "2021-04-13" @default.
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- W3149042384 date "2011-01-01" @default.
- W3149042384 modified "2023-09-23" @default.
- W3149042384 title "Feasibility study of dual energy CT perfusion imaging for assessment of the severity of acute pulmonary embolism" @default.
- W3149042384 hasPublicationYear "2011" @default.
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