目的探讨B-Flow技术在宫颈癌术后放疗患者下肢静脉血栓前状态中的诊断价值。方法应用B-Flow技术对62例下肢静脉血栓前状态的患者进行检查,根据下肢静脉血液中有无有形成份聚集分为高危组(21例)和低危组(41例)。两组给予常规预防血栓形成的治疗,观察患者下肢静脉血栓形成情况。结果放疗结束后高危组中9例形成血栓,低危组中5例形成血栓,高危组血栓发生率43%,明显高于低危组血栓发生率12%(P<0.05)。结论宫颈癌术后放疗患者下肢静脉血栓前状态血液中的有形成分的聚集与血栓形成高度相关,B-Flow技术可以直接观察血液中的有形成分聚集情况,从而可以为临床提供十分有价值的诊断信息。 Objective To investigate the diagnostic value of B-Flow in the pre-venous thrombosis of patients with cervical cancer after radiotherapy. Methods Sixty-two patients with lower extremity venous thromboembolism were examined by B-Flow technique. According to the presence or absence of unidentified constituents in lower extremity venous blood, they were divided into high-risk group (21 cases) and low-risk group (41 cases). The two groups were given routine preventive thrombosis treatment, observation of patients with lower extremity venous thrombosis. Results Thrombosis occurred in 9 of the high-risk groups after thoracic radiotherapy. Thrombosis occurred in 5 of the low-risk groups. The incidence of thrombosis in the high-risk group was 43%, significantly higher than that in the low-risk group (12%, P <0.05). Conclusion The accumulation of tangible components in the blood of patients undergoing preoperative venous thrombosis after radiotherapy for cervical cancer is highly correlated with thrombosis. The B-Flow technique can directly observe the accumulation of tangible components in the blood, which can be very valuable for clinical treatment Diagnostic information.