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Differential Diagnosis of Intravascular Thrombus and Tumor Embolus by Color Doppler Flow Imaging

Yang Weixiu; Chen Hanrong; Huang Youzhen (Department of Ultrasound, Xiangfan Ratheay Hospital, Xiangfan 441003)(Department of Ultrasound, Xiehe Hospital,Tongji Medical University, Wuhan 430022)  
55 patients with intravascular embolism were examined by using color Doppler flow imaging so as to identify the quality of different emboli. In all 31 patients with thrombosis no flow signal could be detected within trombus. Among 24 patients with tumor embolism, arterial now signal could be picked up (resistance index 0. 61±0. 12) within the embolus in 11 patients, in 5 of whom venous flow signal could be found simultaneously; and very abundant arterial flow signal was also viewed beside the embolus in 12 patients.The larger the extent of embolus was, the more abundant flow signal was displayed. It may be concluded that differentiation of the features of embolus is beneficial for searching the primary lesion and evaluating the prognosis.
【CateGory Index】: R447
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