improvement of Z axis resolution in helical CT

CT scout z-resolution improvement with image restoration methods

Currently, new applications demand utilizing CT scout images for diagnostic purposes. However, many CT scout images cannot be used diagnostically due to their poor resolution, particularly in the direction of table movement. Spatial resolution generally can be improved with image restoration techniques. Based on the principles of Wiener filtering and inverse filtering, this paper presents a mod...

Method and phantom to study combined effects of in‐plane (x,y) and z‐axis resolution for 3D CT imaging

Increasingly, the advent of multislice CT scanners, volume CT scanners, and total body spiral acquisition modes has led to the use of Multi Planar Reconstruction and 3D datasets. In considering 3D resolution properties of a CT system it is important to note that both the in-plane (x,y) and z-axis (slice thickness) influence the visual-ization and detection of objects within the scanned volume. ...

Temporal Resolution Improvement in Single Source and Dual Source CT

Purpose: Recently a new method called TRIPICCS (Temporal Resolution Improved Prior Image Constrained Compressed Sensing) was proposed to improve the temporal resolution of a single source (SS) cardiac CT scan [1] (figures 1+2). This method aims at doubling the temporal resolution and at maintaining homogeneous temporal resolution independently of the location and the motion direction of a vesse...

A helical structure with Z

Results from helical axis stellarators