ISSN / eISSN: 0033-8362 / 1826-6983
editor@radiologiamedicajournal.com
ISSN / eISSN: 0033-8362 / 1826-6983
ISSN / eISSN: 0033-8362 / 1826-6983
editor@radiologiamedicajournal.com
ISSN / eISSN: 0033-8362 / 1826-6983
Dr. Nikhil Rao¹, Dr. Olivia Turner², Dr. Sarah Lim³
1 – Pediatric Radiology Division, All India Institute of Medical Sciences, New Delhi, India
2 – Department of Radiology, Royal Children’s Hospital, Melbourne, Australia
3 – Department of Radiology, Johns Hopkins University, USA
Objective: To evaluate diagnostic image quality and radiation dose in low-dose CT angiography protocols for pediatric congenital heart disease.
Methods: Sixty children underwent CT angiography with iterative reconstruction and automatic exposure control. Objective image noise, subjective quality scores, and effective dose were analyzed.
Results: Mean radiation dose was reduced by 48% compared with standard protocols, with no significant reduction in diagnostic quality (mean quality score 4.6/5).
Conclusion: Low-dose CT angiography with iterative reconstruction achieves substantial dose reduction while maintaining excellent diagnostic performance in pediatric congenital heart disease evaluation.
Keywords: Pediatric radiology, CT angiography, radiation dose, congenital heart disease
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