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1、脑出血体积计算,上海市第一人民医院神经内科基地培训,Hematoma Volume Measurement,上海市第一人民医院神经内科基地培训,椭球体积(a、b、c分别代表各轴的一半),上海市第一人民医院神经内科基地培训,血肿体积(a、b、c分别代表长、宽、厚mm 1000=ml),NEUROSURGERY 2006脑外伤手术指南,上海市第一人民医院神经内科基地培训,3种HV计算方法：1、头颅CT成像后，资料导入电脑，计算每一层面积后，叠加面积得出体积，此为体积金标准，但很少用到。2、将血肿模拟为椭球体，体积公式为V=(A*B*C)/2说明如下：A:最大血肿面积层面血肿的最长径B:最大血肿面积
2、层面上与最长径垂直的最长径C:若层厚为1cm，则厚度计算为各层面系数的叠加。血肿面积75%,系数计为13、“Cavalieri direct estimator”方法：由电脑计算完成。,上海市第一人民医院神经内科基地培训,上海市第一人民医院神经内科基地培训,上海市第一人民医院神经内科基地培训,RESULTS:Fifty-six subjects were analyzed(mean age 6215 years;45%women).On-site HV values showed a significantly lower correlation with the MIPAV HV(r=0.6
3、3)than central HV and MIPAV HV(r=0.93)values.The correlation between on-site HV and central HV values was modest(r=0.51).A total of 73%of the central HVs were within 25%of the corresponding MIPAV HVs,whereas only 46%of the on-site HVs were within 25%of the corresponding MIPAV HVs(P0.001).One protoco
4、l violation occurred as a result of inaccuracy of on-site HV measurement.CONCLUSIONS:On-site HV measurements showed high variability,but the impact on the eligibility determination was small.Centralized remeasurements of HVs with feedback to the sites may increase the reliability of the on-site HV measurements.,上海市第一人民医院神经内科基地培训,谢谢！,
