自发性脑出血的血肿体积：椭圆（ABC/2）法得出的体积小于使用面积测量法测得的体积。
Hematoma volumes of spontaneous intracerebral hemorrhage: the ellipse (ABC/2) method yielded volumes smaller than those measured using the planimetric method.
作者信息
Maeda Adriano Keijiro, Aguiar Luiz Roberto, Martins Carolina, Bichinho Gerson Linck, Gariba Munir Antônio
机构信息
Postgraduate Health Technology Program, Pontifical Catholic University of Paraná, Curitiba PR, Brazil.
出版信息
Arq Neuropsiquiatr. 2013 Aug;71(8):540-4. doi: 10.1590/0004-282X20130084.
OBJECTIVE
To compare two different methods for measuring intracerebral hemorrhage (ICH) volume: the ellipse volume (called ABC/2), and the software-aided planimetric.
METHODS
Four observers evaluated 20 brain computed tomography (CT) scans with spontaneous ICH. Each professional measured the volume using the ABC/2 and the planimetric methods. The average volumes were obtained, and the intra- and inter-rater variability was determined.
RESULTS
There is an absolute 2.24 cm3 average difference between both methodologies. Volumes yielded by the ABC/2 method were as much as 14.9% smaller than by the planimetric one. An intra-observer variability rate of 0.46% was found for the planimetric method and 0.18% for the ABC/2. The inter-observer rates were 1.69 and 1.11% respectively.
CONCLUSIONS
Both methods are reproducible. The ABC/2 yielded hemorrhage volumes as much as 14.9% smaller than those measured using the planimetric methodology.
目的
比较两种测量脑出血（ICH）体积的不同方法：椭圆体积法（称为ABC/2法）和软件辅助面积测量法。
方法
四名观察者评估了20例自发性脑出血的脑部计算机断层扫描（CT）。每位专业人员使用ABC/2法和面积测量法测量体积。获得平均体积，并确定观察者内和观察者间的变异性。
结果
两种方法之间的平均绝对差异为2.24 cm³。ABC/2法得出的体积比面积测量法小14.9%。面积测量法的观察者内变异率为0.46%，ABC/2法为0.18%。观察者间变异率分别为1.69%和1.11%。
结论
两种方法均可重复。ABC/2法得出的出血体积比使用面积测量法测量的体积小14.9%。
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