Table 2. Comparison of MAEs for regression prediction of PASP in internal and external test.

	InceptionV3	Resnet50	Xception	Average
MAEs of internal test set	7.45	8.79	8.18	7.85
MAEs of external test set	9.95	10.45	10.01	10.13

Abbreviations: MAE, Mean absolute error; PASP, pulmonary artery systolic pressure.