Miller T D, Desser K B, Lawson M
J Electrocardiol. 1987 Apr;20(2):131-7. doi: 10.1016/s0022-0736(87)80102-4.
Forty-four consecutive patients who had perfusion defects on thallium-201 scanning and positive exercise treadmill tests were prospectively studied. Thirty-eight (86%) subjects had diagnostic ST segment changes in lead V5, 37 (84%) in lead V4, and 44 (100%) in either lead V4, V5 or both. Thirty patients had ST segment changes in the inferior leads, 20 in lead aVR, and only four in lead I and/or aVL. All of these latter subjects had diagnostic ST segments in lead V4 and/or V5. It is concluded that: combined electrocardiographic leads V4 and V5 detect the vast majority of ischemic changes during exercise treadmill testing, regardless of the site of perfusion defects detected by thallium-201 scanning; and monitoring the inferior and lateral leads rarely provides more diagnostic information.
对连续44例在铊-201扫描时有灌注缺损且运动平板试验阳性的患者进行了前瞻性研究。38例（86%）受试者在V5导联有诊断性ST段改变，37例（84%）在V4导联有改变，44例（100%）在V4导联、V5导联或两者均有改变。30例患者在下壁导联有ST段改变，20例在aVR导联有改变，仅4例在I导联和/或aVL导联有改变。所有这些后一组受试者在V4导联和/或V5导联有诊断性ST段改变。得出结论：在运动平板试验期间，联合心电图V4导联和V5导联可检测到绝大多数缺血性改变，无论铊-201扫描所检测到的灌注缺损部位如何；而下壁和侧壁导联的监测很少能提供更多的诊断信息。
