Abstract
High-level fluoroscopic boost options that exceed conventional exposure limits are available as a means of reducing quantum mottle during angiography. Federal law does not specify exposure limits for such high-level controls but requires specific means of activation to safeguard against inadvertent use. The American Association of Physicists in Medicine recently recommended that high-level exposure rates not exceed 2.58 mC/kg/min (10 R/min). At six institutions surveyed, maximum exposure rates ranged from 5.42 to 24 mC/kg/min (21-93 R/min). Activation of high-level capability varied from a simple foot switch to a keyed interlock requiring a second operator to engage. There appears to be no industry coherence in high-level control exposure limits as yet, although the Center for Devices and Radiological Health recently initiated an investigatory program.
Original language | English (US) |
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Pages (from-to) | 643-646 |
Number of pages | 4 |
Journal | Radiology |
Volume | 178 |
Issue number | 3 |
State | Published - Mar 1991 |
Keywords
- Angiography, 9.1
- Diagnostic radiology, radiation exposure
- Fluoroscopy, technology
- Radiations, exposure to patients and personnel
ASJC Scopus subject areas
- Radiological and Ultrasound Technology