Semi-automated preoperative resection planning

摘要

Preoperative resection planning is assisted by a computer. Rather than rely on interpolation of the user input, a graph of interconnections is used. The user inputs one or more polylines on one or more two-dimensional views. The polylines are used to assign resection and remnant seeds with a band of unassigned locations. The 2D seeds are used with the graph of interconnections to assign different voxels in the volume, including the unassigned locations, as being part of the resection volume or part of the remnant volume.

主权项

1. A method for preoperative resection planning, the method comprising:
acquiring data representing a volume of a liver of a patient; generating a two-dimensional view of a slice of the liver from the data; receiving, from a user input device, user input of a plurality of points or line relative to the two-dimensional view; creating, by a processor, a contour in the slice from the points or line; identifying, by the processor, a band around the contour from the data of the slice within a threshold distance of the contour; identifying, by the processor, first and second seeds separated by the contour, wherein the first and second seeds are outside the band; segmenting, by the processor, the volume into first and second three dimensional portions based on the first and second seeds from the slice; and outputting an image showing a resection as the first three-dimensional portion.