. 2020 Jul 27;22(1):131–138. doi: 10.3348/kjr.2020.0116

Table 3. Subjective Image Analysis Results.

Variables	ASiR-V 30%	DLIR-M	DLIR-H	P	P
Variables	ASiR-V 30%	DLIR-M	DLIR-H	P	ASiR-V vs. DLIR-M	ASiR-V vs. DLIR-H	DLIR-M vs. DLIR-H
Subjective image contrast	4.1 ± 0.3	5.0 ± 0.1	5.0 ± 0.2	< 0.001^*	< 0.001^*	< 0.001^*	1.000
Subjective image noise	2.1 ± 0.3	1.0 ± 0.2	1.0 ± 0.0	< 0.001^*	< 0.001^*	< 0.001^*	1.000
Conspicuity of structures
Pulmonary arteries	4.9 ± 0.3	5.0 ± 0.2	5.0 ± 0.1	< 0.001^*	0.030^*	< 0.001^*	1.000
Pulmonary veins	4.7 ± 0.5	4.9 ± 0.3	5.0 ± 0.2	< 0.001^*	0.013^*	< 0.001^*	0.065
Trachea and bronchi	4.8 ± 0.4	5.0 ± 0.2	5.0 ± 0.1	< 0.001^*	< 0.001^*	< 0.001^*	0.948
Lymph nodes	4.2 ± 0.4	4.9 ± 0.4	5.0 ± 0.2	< 0.001^*	< 0.001^*	< 0.001^*	0.462
Pleura and pericardium	4.1 ± 0.3	4.8 ± 0.4	4.9 ± 0.3	< 0.001^*	< 0.001^*	< 0.001^*	0.003^*

Data are presented as mean ± SD. ^*p < 0.05.