- n -
- nblks : matrixdata
- nelements : matrixdata
- net_trues : ecat63_scanheader, ecat7_2Dscanheader, ecat7_scanheader
- next : matdirnode
- nmats : matdirlist
- node_id : ecat63_mainheader
- norm_day : ecat63_normheader
- norm_hour : ecat63_normheader
- norm_matrix_num : ecat63_imageheader
- norm_max : ecat7_2Dnormheader
- norm_min : ecat7_2Dnormheader
- norm_minute : ecat63_normheader
- norm_month : ecat63_normheader
- norm_quality_factor : ecat7_2Dnormheader, ecat7_normheader
- norm_quality_factor_code : ecat7_2Dnormheader, ecat7_normheader
- norm_second : ecat63_normheader
- norm_year : ecat63_normheader
- num_accepted_beats : ecat7_2Dscanheader, ecat7_imageheader, ecat7_polmapheader, ecat7_scanheader
- num_additional_atten_coeff : ecat7_attenheader
- num_angles : ecat7_2Dnormheader, ecat7_2Dscanheader, ecat7_attenheader, ecat7_imageheader, ecat7_scanheader
- num_bed_pos : ecat63_mainheader, ecat7_mainheader
- num_crystal_rings : ecat7_normheader
- num_dimensions : ecat63_imageheader, ecat7_2Dnormheader, ecat7_2Dscanheader, ecat7_attenheader, ecat7_imageheader, ecat7_scanheader
- num_frames : ecat63_mainheader, ecat7_mainheader
- num_gates : ecat63_mainheader, ecat7_mainheader
- num_geo_corr_planes : ecat7_normheader
- num_planes : ecat63_mainheader, ecat7_mainheader
- num_r_elements : ecat7_2Dnormheader, ecat7_2Dscanheader, ecat7_attenheader, ecat7_imageheader, ecat7_normheader, ecat7_scanheader
- num_rings : ecat7_polmapheader
- num_transaxial_crystals : ecat7_normheader
- num_z_elements : ecat7_2Dnormheader, ecat7_2Dscanheader, ecat7_attenheader, ecat7_scanheader
- nviews : matrixdata