They found that 80 percent of the patients had what is called insufficiencyof the valves in the jugular vein.
结果显示,八成的病人都催在这都在不同程度上存在着颈静脉膜瓣性供血不足。
2
Methods 49 patients with venous valvular insufficiency were examined using 2-D color Doppler flow imaging to observe the anatomic structures ofvalves and hemodynamics of venous flow in legs.