Comparison of dual source CT venography and digital subtraction angiography in the diagnosis of deep venous thrombosis

Objective To investigate and compare the value of dual source CT venography and digital subtraction angiography (DSA) in diagnosis of deep venous thrombosis. Methods Forty-nine patients with deep venous thrombosis were selected as the subjects, there were 26 cases of acute thrombosis or chronic phase attack, and 23 cases of old thrombosis; all the patients underwent dual-source CT and DSA for check, and the diagnostic coincidence rates were compared. Results Compliance rate of dual-source CT results for the diagnosis of acute deep vein thrombosis was 100%, which was significantly higher than 76.92% of DSA (P<0.05); compliance rate of dual-source CT results in diagnosis of old thrombosis was 90.03%, which was higher than 65.22% of DSA (P<0.05). Conclusions Dual source CT venography of lower extremity has higher compliance rate in diagnosis of deep venous thrombosis, and it is worthy of clinical promotion. Key words: Dual-source CT; Digital subtraction angiography; Venography; Deep venous thrombosis