Table 3. Subjective image quality assessment in CCTA reconstructed with different algorithms.

Parameter	HIR	MBIR	C-DLR	SR-DLR	P value
					All	HIR vs. SR-DLR	MBIR vs. SR-DLR	C-DLR vs. SR-DLR
Reviewer 1	2.26±0.60	2.38±0.64	2.76±0.62	3.26±0.60	<0.001	<0.001	<0.001	0.001
Reviewer 2	2.24±0.56	2.34±0.59	2.76±0.66	3.30±0.61	<0.001	<0.001	<0.001	0.001

Data are presented as the mean ± standard deviation. CCTA, coronary computed tomography angiography; C-DLR, conventional deep learning reconstruction; HIR, hybrid iterative reconstruction; MBIR, model-based iterative reconstruction; SR-DLR, super-resolution deep learning reconstruction.