Table 3.

Detailed overview of the results from quantitative and qualitative analysis in patients.

	QIR-Off	QIR-1	QIR-2	QIR-3	QIR-4
Global Noise Index [HU]	202 ± 34	178 ± 30	154 ± 26	130 ± 22	106 ± 18
Global SNR Index	4.4 ± 0.8	5 ± 0.9	5.7 ± 1.1	6.7 ± 1.3	8.2 ± 1.6
Mean Attenuation [HU]	−849 ± 53	−850 ± 53	−851 ± 52	−852 ± 52	−852 ± 52
Overall Image Quality	R1: 3; [3,4] R2: 3; [3,4]	R1: 4; [4,4] R2: 4; [4,4]	R1: 5; [4,5] R2: 5; [4,5]	R1: 5; [5,5] R2: 5; [5,5]	R1: 5; [4,5] R2: 5; [4,5]
Image Sharpness	R1: 4; [4,4] R2: 4; [3,4]	R1: 4; [4,5] R2: 4; [4,4.25]	R1: 5; [5,5] R2: 5; [5,5]	R1: 5; [5,5] R2: 5; [5,5]	R1: 4; [3,5] R2: 4; [4,5]
Image Noise	R1: 3; [3,3.25] R2: 3; [3,3]	R1: 4; [3,4] R2: 4; [3,4]	R1: 4; [4,5] R2: 4; [4,4]	R1: 5; [5,5] R2: 5; [5,5]	R1: 5; [5,5] R2: 5; [5,5]

Quantitative data is presented as mean ± standard deviation. Qualitative data is presented as median; (interquartile range) for reader 1 (R1) and reader 2 (R2), respectively.