Optimization and audit of radiation dose during percutaneous transluminal coronary angioplasty

Roshan S Livingstone1, B S Timothy Peace, Sunil Chandy

  • 1Department of Radiology, Christian Medical College, Vellore, Tamil Nadu, India.

Insights

Percutaneous transluminal coronary angioplasty (PTCA) procedures deliver high radiation doses. Optimizing exposure parameters and using copper filters significantly reduced patient radiation exposure by 27-47%.

Area of Science:

  • Medical Imaging
  • Radiology
  • Cardiology

Background:

  • Percutaneous transluminal coronary angioplasty (PTCA) is an interventional cardiology procedure.
  • PTCA procedures are associated with higher patient radiation doses compared to other cardiac interventions.

Purpose of the Study:

  • To audit and optimize radiation doses for patients undergoing PTCA.
  • To evaluate the effectiveness of dose reduction strategies in PTCA.

Main Methods:

  • Studied 44 patients undergoing PTCA with single or multiple stent placement.
  • Measured radiation doses using a dose area product (DAP) meter.
  • Implemented copper filters and optimized exposure parameters for dose reduction.

Main Results:

  • Achieved a 27-47% reduction in radiation dose.
  • Mean DAP values decreased from 66.16 to 48.67 Gy cm(2) for single stent placement.
  • Mean DAP values decreased from 122.68 to 65.44 Gy cm(2) for multiple stent placement.

Conclusions:

  • Copper filters and optimized exposure parameters are effective in reducing radiation doses during PTCA.
  • Periodical radiation dose audits for interventional procedures are recommended due to increasing PTCA numbers and associated risks.

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