Multi-detector CT imaging: impact of virtual tube current reduction and sparse sampling on detection of vertebral fractures.

ABSTRACT:

Purpose

To systematically evaluate the effects of virtual tube current reduction and sparse sampling on image quality and vertebral fracture diagnostics in multi-detector computed tomography (MDCT).

Materials and methods

In routine MDCT scans of 35 patients (80.0% females, 70.6 ± 14.2 years, 65.7% showing vertebral fractures), reduced radiation doses were retrospectively simulated by virtually lowering tube currents and applying sparse sampling, considering 50%, 25%, and 10% of the original tube current and projections, respectively. Two readers evaluated items of image quality and presence of vertebral fractures. Readout between the evaluations in the original images and those with virtually lowered tube currents or sparse sampling were compared.

Results

A significan

SUBMITTER: Sollmann N 

PROVIDER: S-EPMC6554251 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature