Table 1:

Statistics for quantitative hippocampal MR imaging data (HADC, HCVOL, HCT2, and HCSI)

Hippocampus	Controls (n = 20)	Right TLE (n = 29)	Left TLE (n = 26)
ADC (mm²/s 10⁵) (HADC)
Right hippocampus	0.87 ± 0.03 (0.83–0.93)	1.03 ± 0.14 (0.83–1.34)^†^§	0.86 ± 0.05 (0.83–0.96)
Left hippocampus	0.88 ± 0.03 (0.84–0.93)	0.85 ± 0.06 (0.76–1.04)	1.01 ± 0.15 (0.80–1.39)^†^§
A.I.	1.3 ± 1.2 (0.02–3.9)	17.6 ± 10.8 (2.7–44.7)^§	15.2 ± 12.5 (0.3–38.5)^§
Volume (mm³) (HCVOL)
Right hippocampus	3611 ± 350 (3050–4450)^§	2591 ± 587 (1449–3843)^†^§	3354 ± 399 (2251–3947)^‡
Left hippocampus	3488 ± 320 (3077–4246)	3434 ± 400 (2295–4118)	2427 ± 763 (1218–3660)^†^§
A.I.	3.8 ± 2.2 (0.8–7.5)	30.9 ± 17.2 (4.1–77.8)^‡	36.1 ± 24.0 (0.2–78.7)^§
T2 (ms) (HCT2)
Right hippocampus	83.1 ± 2.3 (78.7–86.3)	92.8 ± 5.7 (80.8–109)^†^§	85.0 ± 4.1 (72.6–92.4)
Left hippocampus	82.6 ± 2.8 (78.1–87.0)	85.3 ± 3.2 (78.9–93.2)^‡	93.2 ± 7.3 (79.8–110.3)^†^§
A.I.	1.7 ± 1.0 (0.5–3.5)	9.2 ± 5.0 (0.8–24.9)^§	9.6 ± 7.9 (0.6–27.7)^§
NAA/(Cho + CRE) (ppm) (HCSI)
Right hippocampus	0.79 ± 0.05 (0.72–0.92)	0.56 ± 0.12 (0.33–0.79)^†^§	0.64 ± 0.14 (0.46–1.03)^§
Left hippocampus	0.78 ± 0.06 (0.66–0.87)	0.64 ± 0.08 (0.42–0.81)^§	0.52 ± 0.11 (0.37–0.76)^†^§
A.I.	3.5 ± 3.1 (0.11–11.2)	16.9 ± 17.3 (1.6–62.0)^§	21.4 ± 12.0 (0.9–39.3)^§

Note:—TLE indicates temporal lobe epilepsy; ADC, apparent diffusion coefficient; A.I., asymmetry index; NAA/(Cho + Cre), N-acetyl-aspartate to choline and creatine ratio, or HCSI. All values are expressed as mean ± 1 SD (range).
*Significantly different from the contralateral side at α level of .05.
† Significantly different from the contralateral side at α level of .01.
‡ Significantly different from the correspondent control side at α level of .05.
§ Significantly different from the correspondent control side at α level of .01.