Table 5.

Image quality comparison in the prospective test set with number of acquisitions = 2 (Median [Q1–Q3])

		Accelerated scan			p-value
Qualitative metrics	Reader	DNN-N2pros	TSE-N2pros	TSE-Conv	DNN-N2pros vs TSE-N2pros	DNN-N2pros vs TSE-Conv
Overall image quality
	1	5 [5–5]	3 [3–3]	4 [4–4]	<0.001	<0.001
	2	5 [5–5]	4 [4–4]	5 [5–5]	<0.001	0.083
Perceived SNR
	1	5 [5–5]	3 [3–3]	4 [4–4]	<0.001	<0.001
	2	5 [5–5]	4 [4–4]	5 [5–5]	<0.001	0.157
Artifacts
	1	4 [3–4]	3 [3–4]	3 [3–4]	0.041	0.005
	2	4 [4–5]	4 [4–4]	4 [4–4.25]	<0.001	0.102
Sharpness
Prostate	1	5 [4–5]	4 [4–4]	4 [4–5]	<0.001	0.011
	2	5 [5–5]	4 [4–4]	5 [5–5]	<0.001	0.317
Seminal vesicle	1	5 [4–5]	4 [3–5]	5 [4–5]	0.001	0.132
	2	5 [4–5]	4 [4–4]	5 [4–5]	<0.001	0.655
Rectal wall	1	5 [4–5]	4 [4–4]	4 [4–5]	<0.001	0.029
	2	5 [4–5]	4 [4–4]	5 [4–5]	<0.001	0.739
Urinary bladder	1	4 [4–5]	4 [4–4]	4 [4–4.25]	<0.001	0.046
	2	5 [4–5]	4 [4–4]	4 [4–5]	<0.001	0.034
Obturator muscle	1	5 [5–5]	5 [4–5]	5 [5–5]	0.005	0.257
	2	5 [5–5]	4 [4–5]	5 [5–5]	<0.001	>0.999

N represents the number of acquisitions; DNN, a deep neural network; SNR, signal-to-noise ratio; TSE, turbo spin echo images; TSE-Conv, turbo spin echo images from conventional scans;pros, the prospective test set was acquired with accelerated scans.

Bold numbers indicate statistically significant p-value with Bonferroni correction (p < 0.05/2).