Tin filter compared to low kV protocols - optimizing sinonasal imaging in computed tomography.

ABSTRACT:

Objectives

Paranasal sinus imaging due to chronic inflammatory disease is one of the most common examinations in head and neck radiology with CT imaging considered the current gold standard. In this phantom study we analyzed different low dose CT protocols in terms of image quality, radiation exposure and subjective evaluation in order to establish an optimized scanning protocol.

Methods

In a phantom study, an Alderson phantom was scanned using 12 protocols between 70-120 kV and 25-200 mAs with and without tin filtration. For all datasets, iterative reconstruction was used. Data were objectively evaluated (image noise, (dose-weighted) contrast-to-noise ratio) and for subjective evaluation an online survey using a Likert scale was performed to reach a large group of clinicall

SUBMITTER: Schule S 

PROVIDER: S-EPMC9821404 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature