材料与方法：45例患者，54条下肢经穿造影，共检测股浅—静脉中195对瓣膜的4种功能（正常、轻度、中度、重度损害）。
Materials and methods: 54 Percutaneous Transluminal Popliteal Venography (PTPV) were done in 45 patients, functions of 195 pairs of venous valvular in superficial and popliteal venous were evaluated.
经股静脉注射SPIO2溶液，在注射后30、60、90和150分钟各时刻点按心脏平扫的同样方式获得心脏造影后的图像。
Baseline images of the hearts were acquired at 30 minutes, 60 minutes, 90 minutes and 150 minutes after the intravenous administration of SPIO2.
目的探讨血栓靶向造影剂对犬股静脉急性血栓增强的效果。
Objective To evaluate the enhancement effect of the thrombus-targeted ultrasound contrast agent on acute thrombus in normal canine femoral vein.
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