Makler P T, McCarthy D M, London J W, Sandler M S, Alavi A
J Nucl Med. 1983 Aug;24(8):713-5.
First-harmonic Fourier analysis of a gated blood-pool study is based on the assumption that the cardiac chambers contract once per cardiac cycle. In atrial arrhythmias this condition may not exist for the atria. We recently studied a patient with atrial flutter and 2:1 atrioventricular conduction. There were predictable alterations in the first-harmonic Fourier phase and amplitude images. The observed changes from first-harmonic Fourier analysis were: (a) very low atrial amplitude values, and (b) absence of identifiable atrial regions on the phase image.
门控心血池研究的一次谐波傅里叶分析基于这样一种假设，即心脏腔室每个心动周期收缩一次。在房性心律失常中，心房可能不存在这种情况。我们最近研究了一名患有心房扑动和2:1房室传导的患者。一次谐波傅里叶相位和幅度图像出现了可预测的改变。一次谐波傅里叶分析观察到的变化为：(a) 心房幅度值非常低，以及 (b) 相位图像上无法识别出心房区域。
