Evaluation of Patient Dose in Interventional Cardiology

In diagnosis and treatment of coronary artery diseases performed with x-ray, numerous images have to be taken
from this area of the body which causes an increase in patient's radiation dose. The objectives of this study are the
measurement of Dose Area Product (DAP) and fluoroscopy time. Furthermore it evaluates the correlation between DAP
and fluoroscopy time, DAP and Body Mass Index (BMI), and fluoroscopy time and BMI. In this study, 119 patients were
investigated and among these patients, 43 patients underwent Percutaneous Transluminal Coronary Angioplasty (PTCA)
and 76 patients underwent Coronary Angiography (CA). The mean values of DAP for CA and PTCA were respectively 17.99
and 55.49 Gy.cm2 in women and 18.87 and 51.74 Gy.cm2 in men. Strong correlation for CA (p <0.001) and PTCA (p<0.02)
between DAP and fluoroscopy time was observed. By comparing the mean values of DAP and the fluoroscopy time
obtained in this study with other studies carried out in the field, it is revealed that these values are lower than the
outcomes of previous studies. This difference was due to the high knowledge and experience of the cardiologist and the
suitable pulse rate (15 frame per second) which was used in this study