Evaluation of image quality and radiation dose of thoracic and coronary dual-source CT in 110 infants with congenital heart disease

Saad, Moez Ben; Rohnean, Adéla; Sigal-Cinqualbre, Anne; Adler, Ghazal; Paul, Jean-François

doi:10.1007/s00247-009-1209-6

Cited by 108 publications

(63 citation statements)

References 23 publications

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“…Spiral non-gated MDCT is a widely used imaging technique in the evaluation of thoracic and cardiovascular malformations in young children [4,5,19]. Its capability to acquire sub-millimetre isotropic data has minimised respiratory and motion artefacts with improved image resolution.…”

Section: Non-ecg-synchronised Ct Angiographymentioning

confidence: 99%

“…3. Where greater definition is required for assessing coronary arteries in patients with complex CHD, Ben Saad et al [5] and Goo [19] have devised a 'Combo' CT protocol. This includes a non-gated spiral examination of the entire thorax followed by a limited ECG-triggered DSCT focusing on the conotruncal region.…”

Section: Non-ecg-synchronised Ct Angiographymentioning

confidence: 99%

“…This has the potential for lower radiation dose with image quality maintained even at high heart rate [5,23], making this a reliable imaging modality for the evaluation of complex congenital abnormalities in children.…”

Section: Retrospective Ecg-gated Spiral Ctmentioning

confidence: 99%

“…Multi-detector CT (MDCT) led the way enabling imaging of cardiovascular structures and coronary artery anomalies in children without the use of ECGsynchronisation [1][2][3][4]. However, greater accuracy in coronary artery anatomical delineation was seen using retrospective ECG-gating, and was subsequently applied to CT imaging of neonates with CHD [5,6]. However the increase in radiation burden associated with retrospective ECG-gating has been a limiting factor that has reduced uptake in paediatrics.…”

Section: Introductionmentioning

confidence: 99%

“…1). Faster volume coverage together with higher temporal resolution (75-83 ms), mean that high heart rate are no longer a limiting factor for CT in children and adults [5,17] using prospective gating-much reduced radiation dose with image quality maintained [18][19][20] (Fig. 2).…”

Section: Introductionmentioning

confidence: 99%

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Paediatric cardiac computed tomography: a review of imaging techniques and radiation dose consideration

Young

Owens²

2010

Eur Radiol

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The significant challenges involved in imaging the heart in small children (<15 kg) have been addressed by, and partially resolved with improvement in temporal and spatial resolution secondary to the advent of new multidetector CT technology. This has enabled both retrospective and prospective ECG-gated imaging in children even at high heart rates (over 100 bpm) without the need for beta blockers. Recent studies have highlighted that the radiation burden associated with cardiac CT can be reduced using prospective ECG-gating. Our experience shows that the resultant dose reduction can be optimised to a level equivalent to that of a non-gated study. This article reviews the different aspects of ECG-gating and the preferred technique for cardiac imaging in the young child (<15 kg). We summarize our evidenced based recommendations for readers, referencing recent articles and using our in house data, protocols and dose measurements discussing the various methods available for dose calculations and their inherent bias.

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Section: Non-ecg-synchronised Ct Angiographymentioning

confidence: 99%

Section: Non-ecg-synchronised Ct Angiographymentioning

confidence: 99%

Section: Retrospective Ecg-gated Spiral Ctmentioning

confidence: 99%