Objective To explore the influence on the CT diagnosis of hypoxic ischemic encephalopathy(HIE) by various kernels.Materials and Methods The raw data of infant brain CT was reconstructed into two groups with kernels of FC(function convolution)23 and FC46.The CT value of cerebrospinal fluid,white matter and gray matter were analyzed statistically and compared their influencing on CT diagnosis of HIE.Results The CT value of cerebrospinal fluid was(6.25±2.81)HU,(16.11±3.35)HU respectively on FC23 and FC46 group...