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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Veröffentlicht in:	Physica medica 2018-05, Vol.49, p.99-104
Hauptverfasser:	Habib Geryes, Bouchra, Calmon, Raphael, Donciu, Victoria, Khraiche, Diala, Warin-Fresse, Karine, Bonnet, Damien, Boddaert, Nathalie, Raimondi, Francesca
Format:	Artikel
Sprache:	eng
Schlagworte:	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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Zusammenfassung:	•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