@article{Chaosuwannakit_Makarawate_2013, title={Comparison of Patient Radiation Dose for 128-Row Multidetector Coronary Computed Tomography Angiography by Prospective Versus Retrospective ECG-Triggering Techniques}, volume={28}, url={https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13329}, abstractNote={<p><strong><span style="text-decoration: underline;">Background and objective</span></strong>: To patient radiation dose in a group of patients who underwent 128-row multidetector coronary computed tomography angiography  (CCTA) performed with prospective electrocardiographic (ECG) triggering with radiation dose in a group of patients  who underwent CCTA performed with retrospective ECG-triggering.</p> <p><strong><span style="text-decoration: underline;">Method: </span></strong>We performed a retrospective review of 233 consecutive patients referred for CCTA. CCTAs was performed using different scanning protocols depend on patient’s heart rate. The effective radiation dose was calculated for each patient.<strong></strong></p> <p><strong><span style="text-decoration: underline;">Results: </span></strong>Depending on different dose saving techniques and heart rate, the effective whole-body dose of a cardiac scan ranged from 2.8 to 11.5mSv. Prospective ECG-triggering (PT) has the greatest potential to reduce the effective dose to 64 %, compared to a comparable scan protocol with retrospective ECG-triggering (RT). <strong></strong></p> <p><strong><span style="text-decoration: underline;">Conclusion: </span></strong>Due to this broad variability in radiation exposure of coronary CTA, the radiologist and technician should be aware of the different dose reduction strategies.<strong></strong></p> <p><strong><span style="text-decoration: underline;">Keywords: </span></strong>Radiation exposure, Coronary CTA, CT angiography, Computed Tomography</p>}, number={3}, journal={Srinagarind Medical Journal}, author={Chaosuwannakit, Narumol and Makarawate, Pattarapong}, year={2013}, month={Nov.}, pages={287–293} }