An investigation of temporal resolution parameters in cine-mode four-dimensional computed tomography acquisition.

ABSTRACT: The accuracy of four-dimensional computed tomography (4DCT) imaging depends on temporal characteristics of the acquisition protocol--for example, the temporal spacing of the reconstructed images (also known as cine duration between images) and the gantry rotation speed. These parameters affect the temporal resolution of 4DCT images, and a single default acquisition protocol, as commonly used in most clinics, may be suboptimal for a subset of respiratory motion characteristics. It could lead to substantial inaccuracies in target delineation. The aim of the present study was to evaluate the interplay between parameters affecting temporal resolution and the accuracy of the resulting images. We acquired 4DCT images of cylindrical phantoms under repetitive motion induced by a translation platfo

SUBMITTER: Mutaf YD 

PROVIDER: S-EPMC5722349 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature