ArticleEuropean radiology2015
Dual-source cardiac computed tomography angiography (CCTA) in the follow-up of cardiac transplant: comparison of image quality and radiation dose using three different imaging protocols.
Article in European radiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 10 citations in OpenAlex.
- Application of prospective ECG-gated multiphase scanning for coronary CT in children with different heart rates.Japanese journal of radiology · 2021Article
- Clinical implementation of coronary computed tomography angiography for routine detection of cardiac allograft vasculopathy in heart transplant patients.Transplant international : official journal of the European Society for Organ Transplantation · 2021Article
- The influence of image quality on diagnostic performance of a machine learning-based fractional flow reserve derived from coronary CT angiography.European radiology · 2020Article
- [The research on cardiac volume-time relationship based on retrospective electrocardiograph four-dimension computer tomography data collection and structured sparse algorithm].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2018Article
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Authors and funding
11 authors at 3 institutions in 2 countries.
Funding
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Abstract
objectivesTo prospectively evaluate image quality (IQ) and radiation dose of dual-source cardiac computed tomography (CCTA) using different imaging protocols.
methodsCCTA was performed in 150 patients using the retrospective ECG-gated spiral technique (rECG) the prospective ECG-gated technique (pECG), or the prospective ECG-gated technique with systolic imaging and automated tube voltage selection (pECGsys). IQ was rated using a 16-segment coronary artery model. Techniques were compared for overall IQ, IQ of the large and the small coronary artery segments. Effective dose was used for comparison of radiation dose.
resultsOverall IQ and IQ of the large segments showed no differences between the groups. IQ analysis of the small segments showed lowered IQ in pECGsys compared to rECG (p = 0.02), but not to pECG (p = 0.6). Effective dose did not differ significantly between rECG and pECG (p = 0.13), but was significantly lower for pECGsys (p < 0.001 vs. rECG and pECG).
conclusionRadiation dose of dual-source CCTA in heart transplant recipients is significantly reduced by using prospective systolic scanning and automated tube voltage selection, while overall IQ and IQ of the large coronary segments are maintained. IQ appears to be lower compared to retrospective techniques with regard to small coronary segments. KEY POINTS: • Cardiac computed tomography angiography is useful for cardiac allograft vasculopathy assessment. • Despite elevated heart rate, dose reduction in cardiac computed tomography is possible. • Prospective systolic gating and automated tube voltage selection enable 50 % dose reduction.
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