Abstract：
This study aimed to investigate the effect of using slice partial Fourier (SPF), phase partial Fourier (PPF), and radial scan (Elliptical scanning) methods on image quality. Changes in signal-to-noise ratio (SNR), effective slice thickness, and in-plane resolution were measured in 3D-gradient echo when SPF, PPF, and radial scan were used. Effective slice thickness increased and SNR increased when SPF was used; in-plane resolution decreased and SNR decreased when PPF was used; effective slice thickness did not change, in-plane resolution decreased, and SNR increased when the radial scan method was used. The radial scan method reduces image quality and imaging time compared to those in the SPF and PPF methods.
摘要：
本研究旨在研究使用切片部分傅里叶(SPF)的效果，相位部分傅里叶(PPF)，和径向扫描（椭圆扫描）方法对图像质量的影响。信噪比(SNR)的变化，有效切片厚度,当SPF时，在3D梯度回波中测量面内分辨率，PPF,使用放射状扫描。当使用SPF时，有效切片厚度增加，SNR增加；当使用PPF时，面内分辨率降低，SNR降低；有效切片厚度没有变化，面内分辨率下降，当使用径向扫描方法时，SNR增加。与SPF和PPF方法相比,径向扫描方法降低了图像质量和成像时间。
