Table 4.

Lung Segmentation Accuracy for the Michigan Medicine Dataset

	Adult (n = 100)			Adult Severe ARDS (n = 25)			Pediatric (n = 100)
	Dice (mean)	Dice (min)	Standard Deviation	Dice (mean)	Dice (min)	Standard Deviation	Dice (mean)	Dice (min)	Standard Deviation
TVAC	0.8661	0.7616	0.0392	0.8416	0.7614	0.0409	0.8507	0.7526	0.0375
U-Net	0.8885	0.0001	0.1177	0.8482	0.4332	0.1181	0.8732	0.5645	0.0853
Random Walker	0.7446	0.1497	0.1882	0.6463	0.1596	0.1619	0.6731	0.1892	0.1778
Active Spline	0.6401	0.2003	0.1670	0.6229	0.1583	0.1583	0.6137	0.1491	0.1760

Data are mean with minimum and standard deviation reported for each algorithm on different patient populations. TVAC = Total Variation-based Active Contour, Dice = Sørensen–Dice coefficient, ARDS = acute respiratory distress syndrome