Magnetic resonance diffusion tensor imaging of acute spinal cord injury in spinal trauma

Egyptian Journal of Radiology and Nuclear Medicine

Table 5 Analysis of the diagnostic ability of ADC and FA to differentiate between patients and control groups

ROC curve between patient and control
	Cutoff	Sens.	Spec.	PPV	NPV	AUC	95% CI	p value
FA value at site of injury	≤ 0.403	93.33%	100.0%	100.0%	83.3%	0.957	84–99.6%	< 0.001*
ADC value at site of injury	≤ 1.31	66.67%	80.00%	90.9%	44.4%	0.712	54.7–84.4	0.051*

Sens. sensitivity, spec. specificity, PPV positive predictive value, NPV negative predictive value, AUC area under the curve, CI confidence intervals
p value: probability for independent samples t test for association between patients and control group
*Significant p value (< 0.05)