Table 2.

Results from outlining the spinal cord on one randomly chosen MVCT scan for each of 30 patients, comparing auto-contours and manually drawn contours. The numbers of MVCT scans and slices are indicated. Results are given for the median, mean and standard deviation of the conformity index, and of the distance between centres (mm); and for the mean of the distance (mm) to conformity, of the difference (mm) in left–right dimensions, and of the difference (mm) in anterior-posterior dimensions. Quoted uncertainties are statistical.

Patients	30
Scans	30
Slices	663
Median CI	$0.740\pm 0.005$
Mean CI	$0.725\pm 0.004$
Std Dev CI	0.105
Median DBC	$1.01\pm 0.04$
Mean DBC	$1.17\pm 0.03$
Std Dev DBC	0.73
Mean DTC	$0.16\pm 0.02$
Mean L-R diff	$0.59\pm 0.06$
Mean A-P diff	$0.14\pm 0.07$