目的探讨吲哚菁绿(ICG)荧光染色引导解剖性右半肝切除术在儿童肝脏肿瘤中应用价值。方法回顾性分析本院收治的一例儿童肝母细胞瘤,采用经外周静脉注射ICG,通过"反染法"标记半肝断面,成功完成荧光引导下解剖性右半肝切除术的...目的探讨吲哚菁绿(ICG)荧光染色引导解剖性右半肝切除术在儿童肝脏肿瘤中应用价值。方法回顾性分析本院收治的一例儿童肝母细胞瘤,采用经外周静脉注射ICG,通过"反染法"标记半肝断面,成功完成荧光引导下解剖性右半肝切除术的临床资料。探讨儿童ICG使用剂量、染色方式、肝脏及肝外胆道染色时间指标,染色断面对肝脏切除平面的指导意义。结果应用ICG荧光染色引导下完成解剖性右半肝切除术,术中肝脏染色满意,肝外胆道染色显影清晰,术中出血150 m L,手术时间300 min。术后肝功能下降至正常,恢复顺利。结论应用ICG荧光染色引导对儿童解剖性肝脏切除有重要价值,可能成为全新的儿童解剖性肝切除手术方式;但对于ICG荧光染色成功率、安全性及对预后的影响还需大样本研究。展开更多
Simulation study on the cylindrical gear meshing with the evolution gear meshing stiffness is being done for better understanding the dynamic characteristics of the kinematics.With consideration of damping,bearing cle...Simulation study on the cylindrical gear meshing with the evolution gear meshing stiffness is being done for better understanding the dynamic characteristics of the kinematics.With consideration of damping,bearing clearance and gear backlash nonlinearity,the dynamic model is set up and computed in MATLAB.The analysis about the relationship between the kinematic responses and the meshing stiffness are carried out.And the results showed that as the gear mesh stiffness is changed from small to large,the performance of the system is changed from the harmonic stable periodic motion to with one times,two times,four times,ending chaos of the stability of the bifurcation.The research results would have theoretical guidance value for the fault diagnosis in engineering.展开更多
文摘目的探讨吲哚菁绿(ICG)荧光染色引导解剖性右半肝切除术在儿童肝脏肿瘤中应用价值。方法回顾性分析本院收治的一例儿童肝母细胞瘤,采用经外周静脉注射ICG,通过"反染法"标记半肝断面,成功完成荧光引导下解剖性右半肝切除术的临床资料。探讨儿童ICG使用剂量、染色方式、肝脏及肝外胆道染色时间指标,染色断面对肝脏切除平面的指导意义。结果应用ICG荧光染色引导下完成解剖性右半肝切除术,术中肝脏染色满意,肝外胆道染色显影清晰,术中出血150 m L,手术时间300 min。术后肝功能下降至正常,恢复顺利。结论应用ICG荧光染色引导对儿童解剖性肝脏切除有重要价值,可能成为全新的儿童解剖性肝切除手术方式;但对于ICG荧光染色成功率、安全性及对预后的影响还需大样本研究。
基金supported by the National Natural Science Foundation-supported Program(51275052&51575055)
文摘Simulation study on the cylindrical gear meshing with the evolution gear meshing stiffness is being done for better understanding the dynamic characteristics of the kinematics.With consideration of damping,bearing clearance and gear backlash nonlinearity,the dynamic model is set up and computed in MATLAB.The analysis about the relationship between the kinematic responses and the meshing stiffness are carried out.And the results showed that as the gear mesh stiffness is changed from small to large,the performance of the system is changed from the harmonic stable periodic motion to with one times,two times,four times,ending chaos of the stability of the bifurcation.The research results would have theoretical guidance value for the fault diagnosis in engineering.
