1. A computer-implemented method for segmenting a three-dimensional medical image, the method comprising: receiving the three-dimensional medical image acquired by an imaging device; creating a first stack of two-dimensional images from a first plane of the three-dimensional medical image and a second stack of two-dimensional images from a second plane of the three-dimensional medical image; segmenting, by a processor, the first stack and the second stack of two-dimensional images using at least one neural network model; and determining, by the processor, a label map for the three-dimensional medical image by aggregating the segmentation results from the first stack and second stack.