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

Farajollahi A, Rahimi A, Khayati Shal E, Ghaffari S, Ghojazadeh M, Tajlil A, Aslanabadi N - J Cardiovasc Thorac Res (2014)

Bottom Line: The latter projection was also the most employed projection in PCI group.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.

View Article: PubMed Central - HTML - PubMed

Affiliation: Medical Education Research Center, Department of Medical Physics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran ; Medical Physics Department, Faculty of Medicine, Tabriz University of Medical Science, 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×cm(2) in CAG group and 643.26±359.58 dGy×cm(2) in PCI group. The projection 40° LAO/0° had the highest DAP rate in CAG group (28.98 dGy×cm(2)/ sec) and it was highest in 20° RAO/30° CR in PCI group (29.83 dGy×cm(2)/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.

No MeSH data available.


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Mentions: The mean DAP for CAG was 436.73±315.85 dGy×cm2.Among the used projections in our study sample, mean DAP was lowest at 40° LAO/40° CR (32.7 dGy×cm2), and it was highest at 40° LAO/0° (1047 dGy×cm2) (Table 1). By comparing PA, CR and CA projections, it was found that posterioanterior (PA) projection had the greatest mean DAP (134±370.08 dGy×cm2) (Table 1). In addition; mean DAP was higher in caudal projection than CR projection (115.17±126.6 dGy×cm2and 68.95± 57.87 dGy×cm2, respectively). The projection 40 °LAO was the most frequently used projection in CAG (Figure 1). The projection 40° LAO/10° cranial and 40° LAO/10° caudal had 7 and 14 times less mean DAP compared to 40° LAO/0, respectively.


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

Farajollahi A, Rahimi A, Khayati Shal E, Ghaffari S, Ghojazadeh M, Tajlil A, Aslanabadi N - J Cardiovasc Thorac Res (2014)

© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4291604&req=5

Mentions: The mean DAP for CAG was 436.73±315.85 dGy×cm2.Among the used projections in our study sample, mean DAP was lowest at 40° LAO/40° CR (32.7 dGy×cm2), and it was highest at 40° LAO/0° (1047 dGy×cm2) (Table 1). By comparing PA, CR and CA projections, it was found that posterioanterior (PA) projection had the greatest mean DAP (134±370.08 dGy×cm2) (Table 1). In addition; mean DAP was higher in caudal projection than CR projection (115.17±126.6 dGy×cm2and 68.95± 57.87 dGy×cm2, respectively). The projection 40 °LAO was the most frequently used projection in CAG (Figure 1). The projection 40° LAO/10° cranial and 40° LAO/10° caudal had 7 and 14 times less mean DAP compared to 40° LAO/0, respectively.

Bottom Line: The latter projection was also the most employed projection in PCI group.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.

View Article: PubMed Central - HTML - PubMed

Affiliation: Medical Education Research Center, Department of Medical Physics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran ; Medical Physics Department, Faculty of Medicine, Tabriz University of Medical Science, 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×cm(2) in CAG group and 643.26±359.58 dGy×cm(2) in PCI group. The projection 40° LAO/0° had the highest DAP rate in CAG group (28.98 dGy×cm(2)/ sec) and it was highest in 20° RAO/30° CR in PCI group (29.83 dGy×cm(2)/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.

No MeSH data available.