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Table 5: 
Quantitative analysis: signal, image noise, and SNR in ULDCT, LDCT, and SDCTa
ULDCTSDCTPLDCTSDCTPULDCTLDCTP
S (HU)32.94 ± 4.1629.59 ± 4.97.00731.67 ± 4.2729.59 ± 4.97.35932.94 ± 4.1631.67 ± 4.27.320
IN (HU)5.05 ± 0.924.40 ± 0.89.0013.81 ± 0.404.40 ± 0.89.1545.05 ± 0.923.81 ± 0.40.003
SNR6.71 ± 1.386.91 ± 1.45.2518.35 ± 1.26.91 ± 1.45.1646.71 ± 1.388.35 ± 1.2.001
  • Note:—S indicates signal; IN, image noise.
  • ↵a Data are presented as mean and SD.