Objective:To investigate the correlation of abdominal aorta CT value,renal artery CT value and renal cortex thickness with renal cortex CT value on contrast enhanced 64-slice CT images.Methods:96patients(50 men and 46...Objective:To investigate the correlation of abdominal aorta CT value,renal artery CT value and renal cortex thickness with renal cortex CT value on contrast enhanced 64-slice CT images.Methods:96patients(50 men and 46women;16~74years)with normal kidney function,which was confirmed by kidney function test were enrolled in this study,including bilateral kidneys of 92cases and unilateral kidney of 4cases(total of 188kidneys;92left,96right).After intravenous(IV)injection of contrast agent the kidneys of the selected patients were scanned by MDCT.The scans were performed in arterial,venous and 3min delayed phases.All statistical analyses were performed by using IBM SPSS 20.0.Graphs were generated using Graph Pad Prism 5software.Quantitative data were presented as mean±standard deviation,while qualitative data were presented as frequency(%).P<0.05was considered to be statistically significant.Results:The mean renal cortex thickness was(5.19±0.81)mm in all kidneys.In the arterial phase,a statistically significant positive correlation between renal cortex CT values and abdominal aortic CT values was showed(r=0.584;P<0.001).A statistically significant positive correlation between renal cortex CT values and renal cortex thickness was demonstrated(r=0.533,P<0.0001).Likewise,there was a positive correlation between renal cortex CT value and renal artery CT values(r=0.43,P<0.001).Conclusion:It is a promising approach to assess the individual kidney function by measuring abdominal aorta CT value,renal artery CT value,renal cortex CT value and renal cortex thickness using contrast MDCT.展开更多
Object To elucidate the physiological significance of the spiral flow in the arterial system from the viewpoint of atherogenic lipid transport,an ex vivo experimental comparative
It has been suggested that hypoxia may occur in the arterial system and is likely to involve in the localization of atherogenesis[1].In the present communication,we tested the hypothesis numerically that the spiral fl...It has been suggested that hypoxia may occur in the arterial system and is likely to involve in the localization of atherogenesis[1].In the present communication,we tested the hypothesis numerically that the spiral flow observed in the aorta may have a great impact on oxygen展开更多
目的·分析主动脉缩窄(coarctation of the aorta,CoA)端侧吻合纠治术后患儿的神经系统预后。方法·收集2017年1月1日至2021年12月31日于上海交通大学医学院附属上海儿童医学中心行CoA端侧吻合纠治术患儿的手术及神经系统随访资...目的·分析主动脉缩窄(coarctation of the aorta,CoA)端侧吻合纠治术后患儿的神经系统预后。方法·收集2017年1月1日至2021年12月31日于上海交通大学医学院附属上海儿童医学中心行CoA端侧吻合纠治术患儿的手术及神经系统随访资料,包括磁共振成像(magnetic resonance imaging,MRI)和Griffiths精神发育量表评分。根据Griffiths精神发育量表的分量表评分,评估患儿神经系统各方面预后情况。通过比较MRI和Griffiths精神发育量表评分结果正常与异常患儿的临床资料,分析2种检查结果之间的相关性,以及检查结果与患儿是否实施体外循环(cardiopulmonary bypass,CPB)及CPB方式的相关性。结果·纳入单纯或合并简单心内畸形的CoA患儿27例。有MRI检查结果者25例,其中检查结果异常者5例(20.0%);有Griffiths精神发育量表评分者26例,其中评分异常的患儿21例(80.77%),包括听力-语言评分异常18例、表现评分异常12例。MRI和Griffiths精神发育量表检查结果异常与是否实施CPB无相关性(P=0.341,P=1.000)。MRI检查结果和Griffiths精神发育量表评分显示,在接受CPB的病例中,中低温组神经系统预后无异常的患儿占所有无异常者的比例较高,分别为80.00%与100.00%。结论·CoA端侧吻合纠治术后患儿发生神经系统异常的比例较高,其中影响较大的是听力-语言和表现能力;CPB不是直接引起神经系统预后不良的危险因素,在中低温下实施可能有利于保护神经系统。展开更多
文摘Objective:To investigate the correlation of abdominal aorta CT value,renal artery CT value and renal cortex thickness with renal cortex CT value on contrast enhanced 64-slice CT images.Methods:96patients(50 men and 46women;16~74years)with normal kidney function,which was confirmed by kidney function test were enrolled in this study,including bilateral kidneys of 92cases and unilateral kidney of 4cases(total of 188kidneys;92left,96right).After intravenous(IV)injection of contrast agent the kidneys of the selected patients were scanned by MDCT.The scans were performed in arterial,venous and 3min delayed phases.All statistical analyses were performed by using IBM SPSS 20.0.Graphs were generated using Graph Pad Prism 5software.Quantitative data were presented as mean±standard deviation,while qualitative data were presented as frequency(%).P<0.05was considered to be statistically significant.Results:The mean renal cortex thickness was(5.19±0.81)mm in all kidneys.In the arterial phase,a statistically significant positive correlation between renal cortex CT values and abdominal aortic CT values was showed(r=0.584;P<0.001).A statistically significant positive correlation between renal cortex CT values and renal cortex thickness was demonstrated(r=0.533,P<0.0001).Likewise,there was a positive correlation between renal cortex CT value and renal artery CT values(r=0.43,P<0.001).Conclusion:It is a promising approach to assess the individual kidney function by measuring abdominal aorta CT value,renal artery CT value,renal cortex CT value and renal cortex thickness using contrast MDCT.
基金supported by Grants-in-Aid from the National Natural Science Research Foundation of China,No.30670517,10632010
文摘Object To elucidate the physiological significance of the spiral flow in the arterial system from the viewpoint of atherogenic lipid transport,an ex vivo experimental comparative
基金supported by Grants-in-Aid from the National Natural Science Foundation of China,No.10632010,30670517
文摘It has been suggested that hypoxia may occur in the arterial system and is likely to involve in the localization of atherogenesis[1].In the present communication,we tested the hypothesis numerically that the spiral flow observed in the aorta may have a great impact on oxygen
文摘目的·分析主动脉缩窄(coarctation of the aorta,CoA)端侧吻合纠治术后患儿的神经系统预后。方法·收集2017年1月1日至2021年12月31日于上海交通大学医学院附属上海儿童医学中心行CoA端侧吻合纠治术患儿的手术及神经系统随访资料,包括磁共振成像(magnetic resonance imaging,MRI)和Griffiths精神发育量表评分。根据Griffiths精神发育量表的分量表评分,评估患儿神经系统各方面预后情况。通过比较MRI和Griffiths精神发育量表评分结果正常与异常患儿的临床资料,分析2种检查结果之间的相关性,以及检查结果与患儿是否实施体外循环(cardiopulmonary bypass,CPB)及CPB方式的相关性。结果·纳入单纯或合并简单心内畸形的CoA患儿27例。有MRI检查结果者25例,其中检查结果异常者5例(20.0%);有Griffiths精神发育量表评分者26例,其中评分异常的患儿21例(80.77%),包括听力-语言评分异常18例、表现评分异常12例。MRI和Griffiths精神发育量表检查结果异常与是否实施CPB无相关性(P=0.341,P=1.000)。MRI检查结果和Griffiths精神发育量表评分显示,在接受CPB的病例中,中低温组神经系统预后无异常的患儿占所有无异常者的比例较高,分别为80.00%与100.00%。结论·CoA端侧吻合纠治术后患儿发生神经系统异常的比例较高,其中影响较大的是听力-语言和表现能力;CPB不是直接引起神经系统预后不良的危险因素,在中低温下实施可能有利于保护神经系统。
