Multi-Planar Reformatting in Ct

Literature Review

Multi-Planar Reformatting in CT

Introduction

Three-dimensional reconstruction involves creating 3-D image models from multiple images or images of other dimensions like two-dimensional images. Literally, it involves the creation of 3D scenes from 2D images. Often, images creation projects 3D scenes onto planes of 2D. This process leads to the loss of the depth, which primarily describes the 3D. When this process is taken under consideration, the assumed three-dimensional point is estimated to lie along the line of sight (LOS). The process that leads to the realization of the 3D point from 2D requires the reconsideration of the projected point (Valk, 1980). However, for the case of a single image, it is usually impossible to determine a point on the line that directly corresponds to the 3D point. This scenario is solved by using multiple images whereas the 3D point is determined as the point where the two projection rays intersect each other, and this is regarded as triangulation (Doyle & Barry, 2010)

The present CT scanners offer display of images of isotropic or also near isotropic resolution (Cademartiri & Filippo, 2010). This nature implies that the contemporary way images are displayed does not necessarily have to be limited to only conventional axial display of images. On the contrary, computer software program can be used to build extra volume through laying of single image slices on top of each other. The result of this process is, therefore, a display of once 2D images into a different manner. The 3D reconstruction software has been introduced and integrated to realize Multi-planar reformatting which has created a wide berth in x-ray imaging and specifically the Computed Tomography (CT).

Multi-planar Reconstruction (MPR)

There are several methods that are used for the reconstruction of 3-dimensional images and multi-planar reconstruction is the simplest among all these method. This system entails the stacking of...