Pancreas adenocarcinoma CT texture analysis: comparison of 3D and 2D tumor segmentation techniques

PurposeTo determine equivalency of multi-slice 3D CTTA and single slice 2D CTTA of pancreas adenocarcinoma.MethodsThis retrospective study was research ethics board approved. Untreated pancreas adenocarcinomas were segmented on CT in 128 consecutive patients. Tumor segmentation was compared using two techniques: 3D segmentation by contouring all visible tumor in a 3D volume, and 2D segmentation using only a single axial image. First-order CTTA …