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Related Experiment Videos

Radiation exposure during percutaneous nephrostomy.

T Vehmas1, R Havukainen, M Tapiovaara

  • 1Department of Diagnostic Radiology, Helsinki University Central Hospital, Finland.

Rofo : Fortschritte Auf Dem Gebiete Der Rontgenstrahlen Und Der Nuklearmedizin
|March 1, 1991
PubMed
Summary

Radiologists and assistants receive modest radiation doses during percutaneous nephrostomy (PN). However, radiologist finger doses can approach yearly limits, especially with high-dose procedures, necessitating careful monitoring.

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Area of Science:

  • Radiology
  • Medical Physics
  • Interventional Radiology

Background:

  • Percutaneous nephrostomy (PN) is a common interventional radiology procedure.
  • Radiation exposure is an occupational hazard for healthcare professionals during fluoroscopic procedures.
  • Understanding radiation doses is crucial for patient and staff safety.

Purpose of the Study:

  • To measure and analyze radiation doses to radiologists, assistants, and patients during percutaneous nephrostomy (PN).
  • To assess compliance with International Commission on Radiological Protection (ICRP) dose limits.
  • To identify the most radiation-exposed areas and procedures.

Main Methods:

  • Radiation doses were measured using an area-exposure meter and thermoluminescent dosimeters.

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  • Data collected from 21 percutaneous nephrostomy procedures (11 unilateral, 5 bilateral).
  • Fluoroscopy time and beam area-kerma product were recorded.

    • Main Results:

    • Mean fluoroscopy time per PN was 12 minutes.
    • Mean air kerma-area product was 8.0 Gycm².
    • Doses to radiologists and assistants were generally modest and within ICRP yearly limits.
    • Radiologist's finger doses were the most restrictive, with potential to exceed limits after 450-2600 procedures.

    Conclusions:

    • Standard percutaneous nephrostomy procedures result in acceptable radiation doses for staff and patients.
    • The radiologist's fingers are the most vulnerable to radiation exposure.
    • Adherence to dose limits is achievable with awareness and monitoring of finger doses during PN procedures.