Journal of Medical Physics
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ORIGINAL ARTICLE
Year : 2007  |  Volume : 32  |  Issue : 4  |  Page : 145-149

Optimization and audit of radiation dose during percutaneous transluminal coronary angioplasty


1 Department of Radiology, Christian Medical College, Vellore, Tamil Nadu, India
2 Department of Cardiology, Christian Medical College, Vellore, Tamil Nadu, India

Correspondence Address:
Roshan S Livingstone
Department of Radiology, Christian Medical College, Vellore - 632 004, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-6203.37478

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The percutaneous transluminal coronary angioplasty (PTCA) is one of the interventional procedures which impart high radiation doses to patients compared to the other cardiologic procedures. This study intends to audit and optimize radiation dose imparted to patients undergoing PTCA. Forty-four patients who underwent PTCA involving single or multiple stent placement guided under cardiovascular X-ray machine were included in the study. Radiation doses were measured using dose area product (DAP) meter for patients undergoing single and multiple stent placements during PTCA. A dose reduction of 27-47% was achieved using copper filters and optimal exposure parameters. The mean DAP values before optimization were 66.16 and 122.68 Gy cm 2 for single and multiple stent placement respectively. These values were 48.67 and 65.44 Gy cm 2 respectively after optimization. In the present scenario, due to the increase in the number of PTCAs performed and the associated risk from radiation, periodical audit of radiation doses for interventional procedures are recommended.


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