Table 3.

Median Pre- and Postejaculation Values and Postejaculation Changes in the Quantitative MR Imaging Parameters T1, T2, and ADC

Parameter	Pre-ejaculation Value	Postejaculation Value	Change	Percentage Change	P Value*
T1 (msec)†	2040 (1698–2632)	2020 (1720–2409)	−151 (−458 to 350)	−7.1 (−19.9 to 20.0)	.23
T2 (msec)
CG	77 (64–91)	81 (51–97)	4 (−14 to 16)	4.0 (−21.5 to 21.5)	.47
PZ	118 (98–212)	102 (90–193)	−17 (−22 to −7)	−13 (−18.0 to −6.3)	.004‡
ADC (mm2/sec)
CG	1.22 (0.95–1.74)	1.21 (0.95–1.98)	0.08 (−0.20 to 0.28)	6.8 (−17.4 to 29.5)	.32
PZ	1.30 (1.21–2.08)	1.20 (1.04–1.61)	−0.18 (−0.47 to −0.04)	−14.5 (−22.6 to −3.1)	.004‡

Note.—Numbers in parentheses are ranges. For all values, n = 8.

^*Two-sided Wilcoxon signed rank test was used.

^†Calculated over the entire prostate.

^‡Difference was significant.