Low-dose paediatric cardiac and thoracic computed tomography with prospective triggering: Is it possible at any heart rate?

•CCTA with SAS mode is feasible in children with heart rates greater than 65 bpm.•SAS mode is feasible with low dose for thoracic vascular anatomy studies.•Radiation dose is less in SAS mode compared to non-gated scans. To demonstrate that the use of step-and-shoot (SAS) mode in paediatric cardiac C...

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Bibliographic Details
Published in:Physica medica 2018-05, Vol.49, p.99-104
Main Authors: Habib Geryes, Bouchra, Calmon, Raphael, Donciu, Victoria, Khraiche, Diala, Warin-Fresse, Karine, Bonnet, Damien, Boddaert, Nathalie, Raimondi, Francesca
Format: Article
Language:English
Subjects:
Child
Child, Preschool
Congenital heart disease
Coronary CT angiography
Female
Heart - diagnostic imaging
Heart Rate
Humans
Infant
Infant, Newborn
Male
Paediatric
Prospective Studies
Prospective triggering
Radiation Dosage
Radiation Exposure - analysis
Radiography, Thoracic - adverse effects
Radiography, Thoracic - methods
Step and shoot
Tomography, X-Ray Computed - adverse effects
Tomography, X-Ray Computed - methods
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Summary:•CCTA with SAS mode is feasible in children with heart rates greater than 65 bpm.•SAS mode is feasible with low dose for thoracic vascular anatomy studies.•Radiation dose is less in SAS mode compared to non-gated scans. To demonstrate that the use of step-and-shoot (SAS) mode in paediatric cardiac CT angiography (CCTA) is possible at heart rates (HR) greater than 65 bpm, allowing low-dose acquisition with single-source 64-slices CT. We retrospectively included 125 paediatric patients (0–6 years). CCTA was performed with SAS at diastolic phase in 31 patients (group D, HR 
ISSN:1120-1797
1724-191X
DOI:10.1016/j.ejmp.2018.05.015