Radiation exposure to angiographers under different fluoroscopic imaging conditions

John M Boone, David C. Levin

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

Radiation levels near an imaging chain commonly used in angiography were measured with both a 100-and a 200-mm-thick scatter phantom. The scatter was measured in lines parallel in space to the central ray of the x-ray beam, at lateral distances of 300, 500, and 800 mm. The effects of fluoroscopic kilovoltage and image intensifier magnification mode were also measured. The results indicate that the highest scattered radiation levels occur near the surface of the patient where the x-ray beam enters. Exposure rates were measured in both anteroposterior (AP) and posteroanterior (PA) geometries on a U-arm system. In PA geometry, the highest radiation levels occur below the angiographer's waist, an area well protected by the lead apron. The AP geometry increases the exposure rate to the neck, head, and upper extremities, areas where apron shielding is less effective.

Original languageEnglish (US)
Pages (from-to)861-865
Number of pages5
JournalRadiology
Volume180
Issue number3
StatePublished - Sep 1991
Externally publishedYes

Keywords

  • Angiography, technology
  • Fluoroscopy
  • Phantoms
  • Radiations, injurious effects, genetic, gonadal, 84.47, 85.47
  • Radiations, measurement

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

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