Dosimetric study of calcium score and coronary computed tomography angiography procedures using a 320-detector row CT

JOINT EVENT: 4^th International Conference and Exhibition on Medical Physics and Biophysics & 2^nd International Conference on Nuclear Medicine & Radiation Therapy

July 27-28, 2017 Rome, Italy

Abdel-Hai Benali and R Boughrarou

University of Echahid Hamma Lakhdar, Algeria
University of Sciences and Technology Houari Boumediene, Algeria
National Centre of Medical Imagery, CHU-BEO, Algeria

Posters & Accepted Abstracts: J Nucl Med Radiat Ther

Abstract :

The work is a dosimetric study of cardiac CT scans. The study involved a significant number of patients who have cardiac CT examinations, where the installation used is a 320 detectors scanner. Dosimetric parameters such as CTDIvol, Dose Length Product, PDL, and effective dose were investigated to compare between the contribution of Volume CT and Dynamic CT phases, and to appear the effect of heart rate and tube potential (kVp). The current work showed that heart rate plays a very important role in the determination of irradiation parameters for the Calcium Score and Coronary-CTA procedures. Also, the contribution of the Dynamic CT phase in the CTDIvol was 80.2% rather than the Volume CT phase was 16.5%. However, the total Dose Length Product and effective dose were very comparable to the Volume CT phase where it contributed with 94%. For modulation by ECG synchronization, the prospective mode demonstrated a great reduction of dose compared to the retrospective mode. This study has clearly confirmed that, it is necessary to establish within the teams of doctors and manipulators to scan a true culture of radiation protection.

Biography :

Email: Pgeducation13@gmail.com