View Item 

Radiation dose in coronary CT angiography associated with prospective ECG-triggering technique: Comparisons with different CT generations

Access Status
Open access
Authors
Sabarudin, A.
Sun, Zhonghua
Ng, K.
Date
2013
Type
Journal Article

Metadata
Show full item record
Citation
Sabarudin, Akmal and Sun, Zhonghua and Ng, Kwan-Hoong. 2013. Radiation dose in coronary CT angiography associated with prospective ECG-triggering technique: Comparisons with different CT generations. Radiation Protection Dosimetry. 154 (3): pp. 301-307.
Source Title
Radiation protection dosimetry
DOI
ISSN
Remarks

This is a pre-copyedited, author-produced PDF of an article accepted for publication in Radiation Protection Dosimetry following peer review. The version of record Sabarudin, Akmal and Sun, Zhonghua and Ng, Kwan-Hoong. 2013. Radiation dose in coronary CT angiography associated with prospective ECG-triggering technique: Comparisons with different CT generations. Radiation Protection Dosimetry. 154 (3): pp. 301-307, is available online at: http://doi.org/10.1093/rpd/ncs243

URI
Collection
Abstract

A retrospective analysis was performed in patients undergoing prospective ECG-triggered coronary computed tomography (CT) angiography (CCTA) with the single-source 64-slice CT (SSCT), dual-source 64-slice CT (DSCT), dual-source 128-slice CT and 320-slice CT with the aim of comparing the radiation dose associated with different CT generations. A total of 164 patients undergoing prospective ECG-triggered CCTA with different types of CT scanners were studied with the mean effective doses estimated at 6.8±3.2, 4.2±1.9, 4.1±0.6 and 3.8±1.4 mSv corresponding to the 128-slice DSCT, 64-slice DSCT, 64-slice SSCT and 320-slice CT scanners. In this study a positive relationship was found between the effective dose and the body mass index (BMI). A low radiation dose is achieved in prospective ECG-triggered CCTA, regardless of the CT scanner generation. BMI is identified as the major factor that has a direct impact on the effective dose associated with prospective ECG-triggered CCTA.