2009
DOI: 10.1016/j.amjcard.2008.12.045
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Radiation Dose and Image Quality of Prospective Triggering With Dual-Source Cardiac Computed Tomography

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Cited by 49 publications
(29 citation statements)
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“…In 16 out of 22 studies, the number of patients included in the studies was matched in both groups, while in four studies a significantly small number of patients were included in the prospective ECG-gating group when compared to that included in the corresponding retrospective gating group [27,28,30,36]. In the remaining two studies, the number of patients included in the prospective gating group is more than 3 times of that included in the retrospective groups [32,37].…”
Section: General Informationmentioning
confidence: 96%
See 1 more Smart Citation
“…In 16 out of 22 studies, the number of patients included in the studies was matched in both groups, while in four studies a significantly small number of patients were included in the prospective ECG-gating group when compared to that included in the corresponding retrospective gating group [27,28,30,36]. In the remaining two studies, the number of patients included in the prospective gating group is more than 3 times of that included in the retrospective groups [32,37].…”
Section: General Informationmentioning
confidence: 96%
“…In the remaining two studies, the number of patients included in the prospective gating group is more than 3 times of that included in the retrospective groups [32,37]. Patients' age, heart rate and BMI were matched in both groups in all of the studies except in one study, where significantly younger patients were selected in the prospective ECG-gating group [27].…”
Section: General Informationmentioning
confidence: 99%
“…This includes the use of prospectively ECG-triggered axial image acquisition [5][6][7], various forms of tube current modulation [8] and lowering of tube voltage [8,9]. Even though the results concerning image quality in the published trials have generally been satisfactory [10,11], there is concern that low-dose protocols may negatively influence image quality. This may, in fact, prevent their use.…”
Section: Introductionmentioning
confidence: 98%
“…The described protocol requires double the contrast material dose required for conventional CT angiography and therefore should be avoided in patients with renal dysfunction. Although performing axial (prospective ECG triggered) examinations has been shown in recent studies (22) to substantially decrease the radiation dose, we chose not to use axial scanning for the stress image acquisitions because of the chronotropic effects of adenosine: The use of this agent would have increased the heart rate beyond the low rates known to be most suitable for axial scanning. If future scanners enable reliable prospectively ECG-gated axial scanning at high heart rates, further decreases in radiation dose may be achieved.…”
Section: Cardiac Imaging: Perfusion Imaging With Dual-source Techniqumentioning
confidence: 99%