摘要
目的研究不同功率时间组合下，微波凝固范围、形态及演变规律。方法微波功率60W、90W和凝固时间5min、15min依次组合，水循环冷却式微波天线凝固活体猪肝，超声仪实时观察凝固形态和范围。实验结束，所有凝固标本沿天线插入针道剖开，观察凝固区，范围指标为纵径、横径，形态指标为纵横径比、前纵径后纵径比。结果60W5min~经有较满意的凝固形态，15min时，形态稍退化。90W5min、15min均有较满意的凝固形态。结论当凝固范围直径为2cm左右时，可选择60W5min；当凝固范围直径为3cm左右时，可选择90W15min。
Objective To investigate the coagulation area characteristics with different combinations of the microwave power and coagulation duration.Methods Porcine liver in vivo（n=3） were coagulated by watercooled microwave antenna with different combinations of the microwave power and coagulation duration（60W5min,60W 15min,9OW5min,9OWl5min）.Transverse length of coagulation area,longitudinal length of coagulative area,ratio of longitudinal length and transverse length,ratio of ante-longitudinal length and post-longitudinal length were recorded and comparative analyzed.Results Coagulation area of the porcine liver in watercooled microwave antenna group at 60W5min and 90W15min were similar to sphere.Transverse length of coagulation area was close to 2cm at 60W5min,and 3cm at 90W5min.Conclusion The power and coagulation duration should choose 60W5min and 90W 15rain when transverse length of coagulation area is close to 2cm and 3cm respectively.
出处
《中国血液流变学杂志》
CAS
2013年第3期430-431,434,共3页
Chinese Journal of Hemorheology
关键词
凝固
治疗应用
超声
治疗应用
microwave/therapeutic use
ultrasonography/therapeutic use
