MRI whole-lesion texture analysis on ADC maps for the prognostic assessment of ischemic stroke

BMC Medical Imaging

Table 1 Clinical characteristics of patients in the favorable and unfavorable groups

Variable	Favorable Outcome (N = 46)	Unfavorable Outcome (N = 57)	P
Age, years	65.22 ± 12.22	65.60 ± 13.44	0.883
Sex male, n (%)	32 (69.57)	34 (59.65)	0.297
Hypertension, n (%)	28 (60.87)	41 (71.93)	0.235
Diabetes mellitus, n (%)	13 (28.26)	22 (38.60)	0.271
Smoking, n (%)	8 (17.39)	15 (26.32)	0.280
Atrial fibrillation, n (%)	3 (6.52)	14 (24.56)	0.014*
History of stroke, n (%)	6 (13.04)	15 (26.32)	0.096
Homocysteine, mL	16.67 ± 17.03	15.63 ± 13.49	0.503
Hemorrhage, n (%)	3 (6.52)	13 (22.81)	0.023*
IC volume, mL	15.90 ± 16.10	57.05 ± 63.17	0.000*
Mean ADC value (10⁻³ mm²/s)	0.40 ± 0.12	0.36 ± 0.08	0.041*
NIHSS_baseline, median (P₂₅, P₇₅)	5 (3, 7)	7 (4, 10)	0.000*
NIHSS_discharge, median (P₂₅, P₇₅)	4 (1, 7)	7 (5, 10)	0.000*
mRS_baseline, median (range)	3 (0–4)	4 (1–5)	0.000*
mRS_discharge, median (range)	2 (0–4)	4 (2–5)	0.000*
Scanner, n (%)			0.306
3.0 T MRI	36 (78.26)	49 (85.96)
1.5 T MRI	10 (21.74)	8 (14.04)
Time from onset to MR, hours	57.7 ± 22.0	60.5 ± 18.8	0.485

IC infarcted core, ADC apparent diffusion coefficient, NIHSS National Institutes of Health Stroke Scale, NIHSS_baseline baseline NIHSS score on admission, NIHSS_discharge NIHSS score on discharge, mRS modified rankin scale, mRS_baseline baseline mRS score on admission, mRS_discharge mRS score on discharge, MRI magnetic resonance imaging
*P < 0.05

ISSN: 1471-2342