Can multi-slice helical CT achieve a better noise-dose relationship than single-slice?

6/1/00


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Table of Contents

Can multi-slice helical CT achieve a better noise-dose relationship than single-slice?

Scanners included in the study

Parameters affected by helical reconstruction

Objectives

Manufacturers’ claims

IGE “sweet spots”

Single-slice image reconstruction

Multi-slice image reconstruction

Single-slice scanner: Noise v. pitch

Multi-slice scanner: Noise v. pitch

Noise v. pitch at constant dose

Noise v. pitch at constant dose

Single-slice: Z-axis sensitivity v.pitch

Multi-slice: Z-axis sensitivity v. pitch

Noise-dose relationship

Conclusions

 Author: Julia Carden

Email: julia@sghphy.demon.co.uk

Home Page: http://www.sghphy.demon.co.uk