Patent ID: 11923071
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A method for providing lesion contour refinement for multiphase medical images of an organ, the method comprising:
receiving a 3D input mask corresponding to a lesion contour determined for a reference phase of the multiphase medical images;
deforming the 3D input mask to correspond to point positions for a target phase coordinate system of the medical images to obtain a deformed input mask corresponding to a target phase;
providing the deformed 3D input mask to a neural network;, receiving input slices from the target phase medical images that includes a lesion;
cropping the input slices to remove a sub-portion of the input slices;
performing lesion contour refinement for the cropped input slices and the 3D input mask to obtain a 3D predicted mask;
determining whether the 3D predicted mask meets a minimal overlap requirement, and only storing the 3D predicted mask when the 3D predicted mask meets the minimal overlap requirement; and
storing the 3D predicted mask for the target phase to provide a 3D lesion contour.