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Pediatric Radiology
Erschienen in: Pediatric Radiology 8/2007

01.08.2007 | Original Article

Visualization of neonatal coronary arteries on multidetector row CT: ECG-gated versus non-ECG-gated technique

verfasst von: I-Chen Tsai, Tain Lee, Min-Chi Chen, Yun-Ching Fu, Sheng-Lin Jan, Chung-Chi Wang, Yen Chang

Erschienen in: Pediatric Radiology | Ausgabe 8/2007

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Abstract

Background

Multidetector CT (MDCT) seems to be a promising tool for detection of neonatal coronary arteries, but whether the ECG-gated or non-ECG-gated technique should be used has not been established.

Objective

To compare the detection rate and image quality of neonatal coronary arteries on MDCT using ECG-gated and non-ECG-gated techniques.

Materials and methods

Twelve neonates with complex congenital heart disease were included. The CT scan was acquired using an ECG-gated technique, and the most quiescent phase of the RR interval was selected to represent the ECG-gated images. The raw data were then reconstructed without the ECG signal to obtain non-ECG-gated images. The detection rate and image quality of nine coronary artery segments in the two sets of images were then compared. A two-tailed paired t test was used with P values <0.05 considered as statistically significant.

Results

In all coronary segments the ECG-gated technique had a better detection rate and produced images of better quality. The difference between the two techniques ranged from 25% in the left main coronary artery to 100% in the distal right coronary artery.

Conclusion

For neonates referred for MDCT, if evaluation of coronary artery anatomy is important for the clinical management or surgical planning, the ECG-gated technique should be used because it can reliably detect the coronary arteries.
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Metadaten
Titel
Visualization of neonatal coronary arteries on multidetector row CT: ECG-gated versus non-ECG-gated technique
verfasst von
I-Chen Tsai
Tain Lee
Min-Chi Chen
Yun-Ching Fu
Sheng-Lin Jan
Chung-Chi Wang
Yen Chang
Publikationsdatum
01.08.2007
Verlag
Springer-Verlag
Erschienen in
Pediatric Radiology / Ausgabe 8/2007
Print ISSN: 0301-0449
Elektronische ISSN: 1432-1998
DOI
https://doi.org/10.1007/s00247-007-0512-3

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