Sweetland J, Kertesz A, Prato F S, Nantau K
Magn Reson Imaging. 1987;5(2):129-35. doi: 10.1016/0730-725x(87)90042-7.
Potential effects of MRI exposure on aspects of human cognition were investigated out of concern that possible safety hazards associated with the procedure may exist. One hundred and fifty-seven volunteer subjects were randomly assigned to either an imaged, sham-imaged or nonimaged control condition. The following psychological tests were administered in a double blind procedure at pretreatment, post-treatment and follow-up time periods: the Wechsler Adult Intelligence Scale-Revised (Digit Span, Block Design and Digit Symbol), the Wechsler Memory Scale Paired Associate Learning test, the Benton Revised Visual Retention test, the Vandenberg Mental Rotation test, the Sternberg memory scanning paradigm and the State Anxiety Inventory. The overall analysis of results indicated that MRI at 0.15 T has no significant effect upon the cognitive functions assessed.
由于担心与该检查相关的潜在安全隐患可能存在，因此对MRI暴露对人类认知方面的潜在影响进行了调查。157名志愿者被随机分配到成像组、假成像组或非成像对照组。在预处理、治疗后和随访期间，采用双盲程序进行以下心理测试：韦氏成人智力量表修订版（数字广度、积木设计和数字符号）、韦氏记忆量表配对联想学习测试、本顿修订视觉保持测试、范登伯格心理旋转测试、斯特恩伯格记忆扫描范式和状态焦虑量表。结果的总体分析表明，0.15T的MRI对所评估的认知功能没有显著影响。
