Coronary CTA Imaging Protocols

Coronary CTA exams were done (Definition FLASH dual-source CT, Siemens Healthcare, Forchheim, Germany). The system consists of two X-ray tubes and two detectors positioned on a single gantry with a 90-degree angular offset. Two X-ray sources, double sampling by fast longitudinal modification of the focused point (Z-flying focal spot), rotation period 330 ms, automated tube voltage modulation were the CCTA scan standard protocol [6 (link)]. Patients were scanned while lying down. For the single-source CCTA exam, a 128-slice MDCT (Brilliance 128, Philips Healthcare, Netherland) used the following parameters: 128 × 0.6 collimation, 0.3 s rotation time, the pitch of 0.32, 120 kV tube voltage with ECG-triggering.

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Aupongkaroon P., Makarawate P, & Chaosuwannakit N. (2022). Comparison of radiation dose and its correlates between coronary computed tomography angiography and invasive coronary angiography in Northeastern Thailand. The Egyptian Heart Journal, 74, 6.

Publication 2022

Definition FLASH dual-source CT Brilliance 128

Coronary Mdct Patients X ray

Corresponding Organization :

Other organizations : Khon Kaen University

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Variable analysis

independent variables

CCTA scan parameters: FLASH dual-source CT system (Definition FLASH dual-source CT, Siemens Healthcare, Forchheim, Germany) with two X-ray tubes and two detectors, two X-ray sources, double sampling by fast longitudinal modification of the focused point (Z-flying focal spot), rotation period 330 ms, automated tube voltage modulation
Single-source CCTA exam parameters: 128-slice MDCT (Brilliance 128, Philips Healthcare, Netherland) with 128 × 0.6 collimation, 0.3 s rotation time, pitch of 0.32, 120 kV tube voltage with ECG-triggering

dependent variables

Outcome of the CCTA exams

control variables

Patients were scanned while lying down

positive controls

None specified

negative controls

None specified

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