. 2014 Jun 17;87(1039):20130807. doi: 10.1259/bjr.20130807

Table 3.

Relative differences of lesion apparent diffusion coefficient (ADC) values and comparison between ADC values calculated using pairs of b-values and ADC_all

b-values (s mm⁻²)	Mean Δ_rel (%)^a	Absolute frequency^b	Relative frequency (%)^c	p-value^d
50, 200	27.5	4	2.6	<0.001
50, 400	16.8	3	1.9	<0.001
50, 600	10.4	6	3.8	<0.001
50, 800	5.0	23	14.7	<0.001
50, 1000	2.9	46	29.3	0.152^d
200, 600	8.9	15	9.6	<0.001
200, 800	5.2	27	17.2	0.866^d
200, 1000	4.6	28	17.8	<0.001
400, 1000	9.2	5	3.2	<0.001

^{^a}

Mean Δ_rel: relative difference between ADC and ADC_all with respect to ADC_all, averaged among all lesions.

^{^b}

Absolute frequency: number of lesions for which the ADC value estimated from a particular b-value pair is closest to ADC_all (smallest Δ_rel).

^{^c}

Relative frequency: absolute frequency/total number of lesions.

^{^d}

p-value >0.05—no statistical differences between ADC values estimated with the indicated pair and ADC_all.