quantitative driving analysis with MRI and safety measurements for elderly drivers

我们发现脑白质疏松症和交通事故之间的显着关联的健康驾驶员接受MRI调查作为一般健康检查之一，并回答道路交通事故问卷。特别是，十字路口的碰撞显着参与脑白质疏松症中的各种类型的道路碰撞。多元回归分析显示，多发性脑白质疏松症受试者参与十字路口撞车的校正比值比为2.937 [95%置信区间（CI），1.260-6.847]。通过模拟驾驶试验，使受试者根据蓝、红信号将右腿从油门踏板移到刹车踏板，研究脑白质疏松症与脑功能的关系。脑白质疏松症导致精度明显下降，加工速度波动倾向。MRI定量分析脑白质疏松可能是预防交通事故的有效措施之一。

We found out a significant association between leukoaraiosis and traffic crashes for healthy drivers who underwent MRI surveys as one of general health checkups and answered road traffic crash questionnaire. In particular, crossroad crashes were significantly involved in leukoaraiosis among various types of road crashes. The multiple regression analysis showed that adjusted odds ratios for involvement in crossroad crashes were 2.937 [95% confidence interval (CI), 1.260-6.847] for subjects with multiple leukoaraiosis. We also examined the relationship between leukoaraiosis and brain functions with driving simulation test making examinees move their right legs from an accelerator pedal to a brake pedal according to blue and red signal. Leukoaraiosis brought about a significant decline of accuracy and incline of processing speed fluctuation. Quantitative analysis of leukoaraiosis with MRI may be one of the useful measurements to prevent from traffic crashes.