Egyptian Journal of Radiology and Nuclear Medicine

Table 3 Relation between response with ADC and % difference of size regression

From: Assessment of the percentage of apparent diffusion coefficient value changes as an early indicator of the response of colorectal hepatic metastases to chemotherapy

	Response		Test of Sig.	p
	Non-responding	Responding
	(n = 13)	(n = 17)
ADC
Pre-chemo
Mean ± SD.	1.14 ± 0.37	1.01 ± 0.22	t = 1.171	0.256
Median	1.0	1.0
Post-chemo
Mean ± SD.	1.32 ± 0.33	1.46 ± 0.28	t = 1.305	0.203
Median	1.30	1.52
% difference
Mean ± SD.	16.23 ± 25.30	39.94 ± 16.98	U = 17.000*	< 0.001*
Median	11.0	38.0

t, p: t and p values for Student t test for comparing between the two categories
U, p: U and p values for Mann-Whitney test for comparing between the two categories
*Statistically significant at p ≤ 0.05

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