目的通过头颈联合CT血管造影(Computed Tomographic Angiography,CTA)自动与手动触发时辐射剂量不同的对比,探讨低辐射造影方法。方法选择60名行头颈联合CTA的患者分成A、B两组。A组选择用管电压100 m V,管电流350 m A,注射流率4 m L/s...目的通过头颈联合CT血管造影(Computed Tomographic Angiography,CTA)自动与手动触发时辐射剂量不同的对比,探讨低辐射造影方法。方法选择60名行头颈联合CTA的患者分成A、B两组。A组选择用管电压100 m V,管电流350 m A,注射流率4 m L/s,手动触发做头颈联合CTA所得的辐射剂量;B组选择用管电压100 m V,管电流350 m A,注射流率4 m L/s,通过检测层自动触发做头颈联合CTA所得的辐射剂量。结果 60名患者所做的头颈联合CTA颈动脉及其分支均可清晰显示,完全能满足医学诊断要求。结论手动触发做头颈联CTA所得的辐射剂量都大于自动触发做头颈联合CTA所得的辐射剂量。展开更多
Prosthetic hands are becoming more and more popular among people without a hand and it is able to perform certain manual operations in function.In biology,action potentials trigger muscle contractions,and surface elec...Prosthetic hands are becoming more and more popular among people without a hand and it is able to perform certain manual operations in function.In biology,action potentials trigger muscle contractions,and surface electromyography（sEMG）signals are the sum of action potentials under the skin exposed by the electrodes（via sebum and solution conduction）.展开更多
文摘目的通过头颈联合CT血管造影(Computed Tomographic Angiography,CTA)自动与手动触发时辐射剂量不同的对比,探讨低辐射造影方法。方法选择60名行头颈联合CTA的患者分成A、B两组。A组选择用管电压100 m V,管电流350 m A,注射流率4 m L/s,手动触发做头颈联合CTA所得的辐射剂量;B组选择用管电压100 m V,管电流350 m A,注射流率4 m L/s,通过检测层自动触发做头颈联合CTA所得的辐射剂量。结果 60名患者所做的头颈联合CTA颈动脉及其分支均可清晰显示,完全能满足医学诊断要求。结论手动触发做头颈联CTA所得的辐射剂量都大于自动触发做头颈联合CTA所得的辐射剂量。
基金supported by the National Natural Science Foundation of China(Grant No.51575020)the National Key Technology R&D Program(Grant No.2015BAI02B00)Open Foundation of the State Key Laboratory of Fluid Power and Mechatronic Systems
文摘Prosthetic hands are becoming more and more popular among people without a hand and it is able to perform certain manual operations in function.In biology,action potentials trigger muscle contractions,and surface electromyography（sEMG）signals are the sum of action potentials under the skin exposed by the electrodes（via sebum and solution conduction）.
