Diagnosis of foreign body aspiration with ultralow-dose CT using a tin filter: a comparison study

Emergency Radiology
Lena GordonSandra Diaz

Abstract

Suspected airway foreign body aspiration (FBA) is a common event in paediatric emergency units, especially in children under 3 years of age. It can be a life-threatening event if not diagnosed promptly and accurately. The purpose of this study is to compare the diagnostic performance of an ultralow-dose CT (DLP of around 1 mGycm) with that of conventional radiographic methods (fluoroscopy and chest radiography of the airways) in the diagnosis of FBA children's airways. Retrospective cross-sectional study. Data from 136 children were collected: 75 were examined with conventional radiographic methods and 61 with ultralow-dose CT. Effective doses were compared using independent t tests. The results of bronchoscopy, if performed, were used in creating contingency 2 × 2 tables to assess the diagnostic performance between modalities. An extra triple reading of all images was applied for this purpose. The effective doses used in the ultralow-dose CT examinations were lower compared with those in conventional methods (p < 0.001). The median dose for CT was 0.04 mSv compared with 0.1 mSv for conventional methods. Sensitivity and specificity were higher for ultralow-dose CT than those for conventional methods (100% and 98% versus 33% and...Continue Reading

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Citations

Mar 23, 2021·Current Problems in Diagnostic Radiology·Marla B K SammerVictor J Seghers
Aug 18, 2021·Respiratory Medicine Case Reports·Christos KyriakopoulosKonstantinos Kostikas

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Methods Mentioned

BETA
X-ray
sedation

Software Mentioned

ImpactDose
SPSS
PCXMC

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