Table 1:

Summary of the mean and SD of ADC values in the walls and cavities of the 3 different types of brain abscess

Type of Abscess	Apparent Diffusion Coefficient (mean ± SD) × 10⁻³ mm²/s^*
Type of Abscess	Wall	Restricted Portion of Cavity	Nonrestricted Portion of Cavity
Pyogenic (n = 91)	0.79 ± 0.19	0.73 ± 0.18	1.32 ± 0.41
Tubercular (n = 11)	0.83 ± 0.34	0.66 ± 0.23	1.61 ± 0.42
Fungal (n = 8)	0.81 ± 0.22	0.50 ± 0.05	1.50 ± 0.42
P values	P = 0.35^‡^§	P = 0.23^‡^§	P = 0.90^‡^§
	P = 0.77^†^§	P = 0.01^†^§	P = 0.41^†^§
	P = 0.36^†^‡	P = 0.51^†^‡	P = 0.39^†^‡

* The mean ADC of normal-appearing white matter in our study was 0.74 ± 0.07 × 10⁻³ mm²/s.
† Pyogenic abscess.
‡ Tubercular abscess.
§ Fungal abscess.