3D Reconstruction of Abdominal Organs from 2D Slices

For medical diagnosis, visualization, and model-based therapy planning three-dimensional geometric reconstructions of individual anatomical structures are often indispensable. Since internal anatomical structures cannot be measured optically or mechanically in vivo, three-dimensional reconstruction of 2D image slices remains the method of choice. This calls for an effective volumetric image reconstruction method to find the correspondence among a sequence of 2D images and recover the 3D coherence that is lost in the sampling process.In this work, we reconstruct a 3D volumetric model of abdominal organs from 2D slices. A two step process is used to accomplish this (i) Segmentation of organ (ii) 3D volume reconstruction. Segmentation is done using seeded region growing. 3-D reconstruction is done with the help of a fast volume render application which uses OpenGL surfaces developed using MATLAB. 3D reconstruction helps in better quantitative evaluation on 3-D physical peculiarities of abdominal organs which can be very useful for better treatment planning.