Radiation dose reduction in paediatric coronary computed tomography: assessment of effective dose and image quality

The Computed Tomography (CT) image quality is determining by appropriate radiation dose in CT examination. Increases of the radiation dose become dangerous for our health such as induces of cancer, skin injuries, heritable mutations, reddening, burn the skins, etc. Therefore, the dose management study in the CT scanning procedure is one of the most important factors. This research article focuses on the use of the dose effectively in pediatric CT and cardiac CT scan procedures. Besides, the paper comprises dose hunt-down, auditing the scanner utilization, patient safety for the hospital association. This research article discusses radiation dose reduction techniques for effective dose in the view of future perspective in CT scan. This research article suggesting an appropriate technique to reduce the dose effectively in CT images during scanning. The effective dose test was conducted after reviews and ideas from future perspective designs.

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0460: Radiation dose reduction in pediatric coronary CT: assessment of effective dose and image quality

Archives of Cardiovascular Diseases Supplements ◽

10.1016/s1878-6480(15)71767-2 ◽

2015 ◽

Vol 7 (1) ◽

pp. 97

Author(s):

Francesca Raimondi ◽

Bouchra Habib Geryes ◽

Diala Khraiche ◽

Myriam Bensemlali ◽

Philippe Richard ◽

...

Keyword(s):

Image Quality ◽

Radiation Dose ◽

Effective Dose ◽

Dose Reduction ◽

Radiation Dose Reduction ◽

Coronary Ct

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Diagnostic Performance of High-Definition Coronary Computed Tomography Angiography Performed With Multiple Radiation Dose Reduction Strategies

Canadian Journal of Cardiology ◽

10.1016/j.cjca.2010.12.026 ◽

2011 ◽

Vol 27 (5) ◽

pp. 606-612 ◽

Cited By ~ 15

Author(s):

Bobak Heydari ◽

Jonathon Leipsic ◽

G.B. John Mancini ◽

James K. Min ◽

Troy LaBounty ◽

...

Keyword(s):

Computed Tomography ◽

Radiation Dose ◽

Dose Reduction ◽

Computed Tomography Angiography ◽

Diagnostic Performance ◽

Coronary Computed Tomography Angiography ◽

Radiation Dose Reduction ◽

High Definition ◽

Coronary Computed Tomography ◽

Reduction Strategies

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Coronary computed tomography angiography during arrhythmia: Radiation dose reduction with prospectively ECG-triggered axial and retrospectively ECG-gated helical 128-slice dual-source CT

Journal of Cardiovascular Computed Tomography ◽

10.1016/j.jcct.2012.04.003 ◽

2012 ◽

Vol 6 (3) ◽

pp. 172-183.e2 ◽

Cited By ~ 33

Author(s):

Ashley M. Lee ◽

Leif-Christopher Engel ◽

Baiju Shah ◽

Gary Liew ◽

Manavjot S. Sidhu ◽

...

Keyword(s):

Computed Tomography ◽

Radiation Dose ◽

Dose Reduction ◽

Computed Tomography Angiography ◽

Coronary Computed Tomography Angiography ◽

Radiation Dose Reduction ◽

Dual Source Ct ◽

Coronary Computed Tomography ◽

Dual Source

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Low Dose versus Standard Single Heartbeat Acquisition Coronary Computed Tomography Angiography

Journal of Clinical Imaging Science ◽

10.4103/jcis.jcis_51_18 ◽

2018 ◽

Vol 8 ◽

pp. 52

Author(s):

Ernesto Di Cesare ◽

Alessandra Di Sibio ◽

Antonio Gennarelli ◽

Margherita Di Luzio ◽

Ines Casazza ◽

...

Keyword(s):

Computed Tomography ◽

Comparative Analysis ◽

Image Quality ◽

Radiation Dose ◽

Effective Dose ◽

Computed Tomography Angiography ◽

Coronary Computed Tomography Angiography ◽

Ct Scanner ◽

Diagnostic Quality ◽

Coronary Computed Tomography

Purpose: The aim of this study was to compare image quality and mean radiation dose between two groups of patients undergoing coronary computed tomography angiography (CCTA) using a 640-slice CT scanner with two protocols with different noise level thresholds expressed as standard deviation (SD). Materials and Methods: Two-hundred and sixty-eight patients underwent a CCTA with 640 slice CT scanner. In the experimental group (135 patients), an SD 51 protocol was employed; in the control group (133 patients), an SD 33 protocol was used. Mean effective dose and image quality with both objective and subjective measures were assessed. Image quality was subjectively assessed using a five-point scoring system. Segments scoring 2, 3, and 4 were considered having diagnostic quality, while segments scoring 0 and 1 were considered having nondiagnostic quality. Signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) between the two groups as well as the effective radiation dose (ED) was finally assessed. Results: Comparative analysis considering diagnostic quality (2, 3, and 4 score) and nondiagnostic (score 0 and 1) quality demonstrated that image quality of SD 51 group is not significantly lower than that of S33 group. The noise was significantly higher in the SD 51 group than in the SD 33 group (P < 0.0001). The SNR and CNR were higher in the SD 33 group than in SD 51 group (P < 0.0001). Mean effective dose was 49% lower in the SD 51 group than in SD 33 group; indeed mean effective dose was 1.43 mSv ± 0.67 in the SD 51 group while it was 2.8 mSv ± 0.57 in the SD 33 group. Conclusion: Comparative analysis shows that using a 640-slice CT with a 51 SD protocol, it is possible to reduce the mean radiation dose while maintaining good diagnostic image quality.

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