Table 5.

Summary of Correlation Coefficients and Phase Lags Between Gas Stimulus and BOLD Response for Tumor and Surrounding Fibroglandular (FG) Tissue

Patient	Median correlation coefficient		Phase lag at maximum correlation		Phase difference
	FG	Tumor	FG	Tumor
1	0.23	0.41	2 min 47 sec (1.38π)	40 sec (0.33π)	2 min 27 sec (1.06π)
2	0.21	0.19	13 sec (0.11π)	7 sec (0.06π)	7 sec (0.06π)
3	0.14	0.11	47 sec (0.39π)	47 sec (0.39π)	0 sec (0.00π)
4	0.16	0.25	2 min 40 sec (1.33π)	1 min 53 sec (1.44π)	−13 sec (‐0.11π)
5	0.19	0.11	13 sec (0.11π)	47 sec (0.39π)	−34 sec (‐0.28π)