Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OHNISHI HIDEO and KIDA TETSUO and NOMA KAZUO and MATSUO SATORU and YOSHIMURA MASAHIRO and MASUDA KAZUTAKA,Comparison of Optimized Cut-off Frequency of Butterworth Filter for Cerebral Perfusion SPECT Images Assessed by Real Space and Frequency Space Domains,Japanese Journal of Radiological Technology,0369-4305,Japanese Society of Radiological Technology,1998,54,6,764-770,https://cir.nii.ac.jp/crid/1390282681361585536,https://doi.org/10.6009/jjrt.kj00003110164