Image Wisely, a joint initiative of ACR, RSNA, ASRT and AAPM, provides information to the medical community to promote radiation safety in medical imaging.

Case 7: Patient Skin Dose with Interventional Fluoroscopy: Metrics, C-Arm Geometry and Spectral Filtration

CE and CME currently unavailable

Emphasizes awareness of skin dose during interventional fluoroscopy, use of metrics, C-arm geometry and special filtration to optimize dose.

 

Authors: W. Pavlicek; R.G. Paden; T. Boltz; J. Hanson

Target Audience: Radiologists, radiologic technologists and medical physicists working with interventional fluoroscopy

This educational activity is free.

Learning Objectives
Upon completion of this case, the participant will be able to:

  1. Identify the single most important tableside reported dose quality assurance (QA) metric for potential of skin tissue reactions, i.e. skin erythema
  2. Locate the patient exposure reference point (PERP) on the most commonly used interventional radiology (IR) C-arm configuration
  3. Utilize C-arm, table and detector geometry to minimize unnecessary skin dose to the patient
  4. Incorporate the use of spectral filtration, especially copper spectral filtration as a skin dose savings technique
  5. Identify the limitations of cumulative air kerma (CAK) as a surrogate for peak skin dose (PSD)

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