方法用游标卡尺测量血管内径，并进行统计学分析。
Methods To measure the diameter by using vernier caliper and analyze them by statistics.
手术原则是颈浅静脉切除，颈内静脉重叠缝合，以缩小血管内径。
The operative principle: is resection of the superficial jugular vein and the infoding suture of the internal jugular vein, so as to constrict the inside diameter of the blood vessel.
比较注射前后小动脉、小静脉及毛细血管内径的变化，测定红细胞与两种造影剂在微循环内的流速。
The diameter of the arterioles, venules and capillaries before and after injection were compared. The velocity of the red blood cells and the contrast agents were measured.
结果1。从介入治疗的角度得到了甲状腺上、下动脉起点位置及方位，非腺体支与腺体血管内径、长度、角度等的解剖及影像统计学资料。
Results 1. The anatomical and imaging data of the location, direction, inner diameters, length and angles of thyroid arteries were gained for the sake of interventional therapy.
结果1。从介入治疗的角度得到了甲状腺上、下动脉起点位置及方位，非腺体支与腺体血管内径、长度、角度等的解剖及影像统计学资料。
Results 1. The anatomical and imaging data of the location, direction, inner diameters, length and angles of thyroid arteries were gained for the sake of interventional therapy.
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