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Pediatric Radiology

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Open Access 01-10-2017 | Original Article

Pediatric 320-row cardiac computed tomography using electrocardiogram-gated model-based full iterative reconstruction

Authors: Go Shirota, Eriko Maeda, Yoko Namiki, Razibul Bari, Kenji Ino, Rumiko Torigoe, Osamu Abe

Published in: Pediatric Radiology | Issue 11/2017

Abstract

Background

Full iterative reconstruction algorithm is available, but its diagnostic quality in pediatric cardiac CT is unknown.

Objective

To compare the imaging quality of two algorithms, full and hybrid iterative reconstruction, in pediatric cardiac CT.

Materials and methods

We included 49 children with congenital cardiac anomalies who underwent cardiac CT. We compared quality of images reconstructed using the two algorithms (full and hybrid iterative reconstruction) based on a 3-point scale for the delineation of the following anatomical structures: atrial septum, ventricular septum, right atrium, right ventricle, left atrium, left ventricle, main pulmonary artery, ascending aorta, aortic arch including the patent ductus arteriosus, descending aorta, right coronary artery and left main trunk. We evaluated beam-hardening artifacts from contrast-enhancement material using a 3-point scale, and we evaluated the overall image quality using a 5-point scale. We also compared image noise, signal-to-noise ratio and contrast-to-noise ratio between the algorithms.

Results

The overall image quality was significantly higher with full iterative reconstruction than with hybrid iterative reconstruction (3.67±0.79 vs. 3.31±0.89, P=0.0072). The evaluation scores for most of the gross structures were higher with full iterative reconstruction than with hybrid iterative reconstruction. There was no significant difference between full and hybrid iterative reconstruction for the presence of beam-hardening artifacts. Image noise was significantly lower in full iterative reconstruction, while signal-to-noise ratio and contrast-to-noise ratio were significantly higher in full iterative reconstruction.

Conclusion

The diagnostic quality was superior in images with cardiac CT reconstructed with electrocardiogram-gated full iterative reconstruction.

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Title: Pediatric 320-row cardiac computed tomography using electrocardiogram-gated model-based full iterative reconstruction
Authors: Go Shirota
Eriko Maeda
Yoko Namiki
Razibul Bari
Kenji Ino
Rumiko Torigoe
Osamu Abe
Publication date: 01-10-2017
Publisher: Springer Berlin Heidelberg
Published in: Pediatric Radiology / Issue 11/2017
Print ISSN: 0301-0449
Electronic ISSN: 1432-1998
DOI: https://doi.org/10.1007/s00247-017-3901-2

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Pediatric 320-row cardiac computed tomography using electrocardiogram-gated model-based full iterative reconstruction

Abstract

Background

Objective

Materials and methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Objective

Materials and methods

Results

Conclusion

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