Nolan J, Lipkin D P
Department of Cardiology, Royal Free Hospital, Hampstead, London.
J Electrocardiol. 1991 Jul;24(3):263-6. doi: 10.1016/0022-0736(91)90032-h.
During the course of investigation for palpitations, a 62-year-old man underwent exercise testing using a MARQUETTE CASE 12 computerized exercise testing system. By stage III of the modified Bruce protocol, the computer-generated electrocardiogram appeared to show the development of exercise-induced preexcitation. Closer examination of the raw unfiltered data showed this to be a computer-generated artifact rather than true preexcitation. This artifact arose due to inherent limitations common to all computerized exercise testing systems and emphasizes the need to always review raw data, even when a seemingly clear-cut abnormality is present on a computer-averaged electrocardiogram.
在对一名心悸患者进行检查的过程中，一名62岁男性使用MARQUETTE CASE 12计算机化运动测试系统进行了运动测试。在改良Bruce方案的第三阶段，计算机生成的心电图似乎显示出运动诱发的预激。对未过滤的原始数据进行仔细检查后发现，这是计算机生成的伪迹，而非真正的预激。这种伪迹是由于所有计算机化运动测试系统共有的固有局限性导致的，强调了即使在计算机平均心电图上出现看似明确的异常时，也始终需要查看原始数据的必要性。
