Submitted: 12 Dec 2014
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J Cardiovasc Thorac Res. 2014;6(4):247-252.
doi: 10.15171/jcvtr.2014.020
PMID: 25610557
PMCID: PMC4291604
  Abstract View: 532
  PDF Download: 620

Original Article

Patient’s Radiation Exposure in Coronary Angiography and Angioplasty: The Impact of Different Projections

Alireza Farajollahi 2, Atena Rahimi 2 * , Ebrahim Khayati Shal 3, Samad Ghaffari 4, Morteza Ghojazadeh 5, Arezou Tajlil 4, Nasser Aslanabadi 4

1 Medical Education Research Center, Department of Medical Physics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
2 Medical Physics Department, Faculty of Medicine, Tabriz University of Medical Science, Tabriz, Iran
3 Urmia University of Medical Science, Urmia, Iran
4 Cardiovascular Research Center, Tabriz University of Medical Science, Tabriz, Iran
5 Liver and Gastrointestinal Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran

Abstract

Introduction: We aimed to determine angiography projections with lower Dose Area Product (DAP) rate by measuring the mean DAP and fluoroscopy times in coronary angiography (CAG) and percutaneous coronary intervention (PCI) and calculating DAP rate in different projections. Methods: DAP and fluoroscopy times were measured in all employed projections in real-time in 75 patients who underwent CAG or PCI by a single cardiologist in Madani Cardiovascular University Hospital (45 in CAG group and 30 in PCI group). DAP rate was calculated in both groups and in all projections. The projections with highest and lowest DAP rate were determined. Results: Mean DAP was 436.73±315.85 dGy×cm2 in CAG group and 643.26±359.58 dGy×cm2 in PCI group. The projection 40° LAO/0° had the highest DAP rate in CAG group (28.98 dGy×cm2/ sec) and it was highest in 20° RAO/30° CR in PCI group (29.83 dGy×cm2/sec). The latter projection was also the most employed projection in PCI group. Conclusion: The amount of radiation dose in this study is in consistent with the previous reports. Specific angiographic projections expose patients to significantly higher radiation and they should be avoided and replaced by less irradiating projections whenever possible.
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