Rakovec P, Kranjec I, Fettich J J, Fidler V, Pohar B, Porenta M, Janezic A, Varl B
Clin Cardiol. 1986 Oct;9(10):475-8. doi: 10.1002/clc.4960091001.
The sequence of ventricular contraction was studied by radionuclide phase imaging in 25 patients with Wolff-Parkinson-White syndrome. The studies were performed when no signs of precontraction were present in the electrocardiogram; in these cases pre-excitation was either intermittent or suppressable by injection of ajmaline. In 11 of the 16 patients with free wall accessory pathways, precontraction could be detected in spite of electrocardiographically absent pre-excitation. Discrete precontraction was seen also in 2 of the 9 patients with paraseptal accessory pathways. We conclude that antegrade conduction through the accessory pathway does not need to be completely blocked if signs of pre-excitation are absent on the electrocardiogram, and that phase imaging is, at least in some patients (especially those with free wall accessory pathways), a more sensitive technique for detection of pre-excitation (precontraction) than the electrocardiogram.
采用放射性核素相位成像技术对25例预激综合征患者的心室收缩顺序进行了研究。研究在心电图无预收缩迹象时进行；在这些病例中，预激呈间歇性或可通过注射阿义马林抑制。在16例游离壁旁路患者中的11例，尽管心电图上无预激表现，但仍可检测到预收缩。在9例间隔旁旁路患者中的2例也可见离散的预收缩。我们得出结论，如果心电图上无预激迹象，通过旁路的前向传导不一定需要完全阻断，并且相位成像至少在某些患者（尤其是游离壁旁路患者）中是一种比心电图更敏感的检测预激（预收缩）的技术。
