Houston A S, Elliott A T, Stone D L
Phys Med Biol. 1982 Oct;27(10):1269-77. doi: 10.1088/0031-9155/27/10/007.
A method is described which offers an alternative to conventional Fourier phase/amplitude imaging for analysing representative LV cycles obtained from first-pass cardiac studies. The method involves applying factor analysis to the data and producing functional images of the first two factor loadings after polar transformation. The method corrects for cycle asymmetries which produce anomalies in the Fourier images. For 88 studies the method provides greater uniformity among normal phase images while retaining, or even enhancing, abnormalities. Small differences between amplitude images produced by the two methods do not appear to be important.
本文描述了一种方法，该方法为分析首次通过心脏研究获得的代表性左心室周期提供了一种替代传统傅里叶相位/幅度成像的方法。该方法包括对数据应用因子分析，并在极坐标变换后生成前两个因子载荷的功能图像。该方法校正了导致傅里叶图像中出现异常的周期不对称性。对于88项研究，该方法在正常相位图像中提供了更高的均匀性，同时保留甚至增强了异常情况。两种方法产生的幅度图像之间的微小差异似乎并不重要。
