ETT	endotracheal tube
CNN	convolution neural network
AP	anteroposterior
PACS	picture archiving and communication system
DICOM	digital imaging and communication and medicine
Nifty	Neuroimaging Informatics Technology Initiative
FPN	feature pyramid network
SGD	stochastic gradient descent
SD	standard deviation
TP	true positive
FP	false positive
FN	false negative
NIH	National Institutes of Health