Vik A, Brubakk A O, Rinck P A, Sande E, Levang O W, Sellevold O
Department of Biomedical Engineering, University of Trondheim, Norway.
Neuroradiology. 1991;33(5):396-8. doi: 10.1007/BF00598610.
In order to assess the occurrence of minor focal brain lesions after coronary bypass surgery, magnetic resonance imaging (MRI) was used. Nine male patients (age 42-63) with angina pectoris were investigated at 0.5 Tesla. The investigation was performed one to seven weeks prior to the operation and one month after the operation. Before surgery, the images demonstrated more than five high intensity spots in the white matter of the brain in all but two patients. No additional spots were found after operation. This pilot study indicates that it might be difficult to use MRI to detect minor parenchymal lesions after cardiopulmonary bypass surgery.
为了评估冠状动脉搭桥手术后轻微局灶性脑损伤的发生率，采用了磁共振成像（MRI）技术。对9名患有心绞痛的男性患者（年龄42 - 63岁）在0.5特斯拉磁场强度下进行了研究。在手术前1至7周以及手术后1个月进行了该项检查。手术前，除两名患者外，所有患者的脑部白质图像均显示有超过5个高强度斑点。术后未发现新增斑点。这项初步研究表明，使用MRI检测体外循环心脏手术后的轻微实质损伤可能存在困难。
