Table 5. tSNR and two-sample t-test results for the data sets from three different reconstruction schemes.

a
ROI	Single-shot EPI	Multi-shot EPI	EPIK
Signal	59.99 ± 3.44	46.73 ± 7.78	55.26 ± 5.72
Background (ghost)	4.73 ± 0.58	3.08 ± 0.70	4.36 ± 0.66
Background (other)	3.78 ± 0.06	3.84 ± 0.06	3.81 ± 0.06
b
ROI	Single-shot EPI	Multi-shot EPI	EPIK
Signal	N/A	7.2 × 10−7 (-6.24)	0.008 (-2.84)
Background (ghost)	N/A	0.4 × 10−7 (-7.27)	0.097 (-1.71)
Background (other)	N/A	0.012 (2.68)	0.162 (1.43)

The top table (a) shows mean ± SD tSNR results computed over the 16 subjects. The bottom table (b) presents the two-sample t-test results for the two comparison groups (multi-shot EPI vs single-shot EPI and EPIK vs single-shot EPI). The presented p-values and corresponding t-values are the thresholds that reject the null hypothesis.