目前用于脑功能检查的影像手段包括:f MRI、SPECT、PET等。在f MRI、SPECT、PET脑功能成像分析等领域中,统计参数图(statistical parametric mapping,SPM)被广泛采用。SPM是由英国Hammersmith医院的Friston等开发,原理是假设图像中的像素值服从一个已知概率分布(通常是T分布或F分布)[1],应用标准统计方法对f MRI、SPECT和PET图像中的像素进行 Currently used for brain function tests include: f MRI, SPECT, PET and so on. Statistical parametric mapping (SPM) is widely used in areas such as f MRI, SPECT, and PET brain imaging. The SPM was developed by Friston et al. At Hammersmith Hospital in the United Kingdom. The principle is to assume that the pixel values ​​in an image are subject to a known probability distribution (usually a T-distribution or an F-distribution) [1]. Standard MRI is used for f MRI, SPECT and PET images In the pixel