Thursday, December 31, 2009

Research from State University of New York has provided new informationabout dentomaxillofacial radiology. USA, LLC

Xray, originally uploaded by herby_fr.

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"A new hand-held battery-operated portable X-ray system was tested for possible leakage radiation through the existing heavy metal compounds surrounding the Xray tube, backscatter radiation through the lead-filled acrylic shield attached at the end of the exit tube and patient exposure. Dose measurements were conducted using a DXTRR phantom and a water phantom," scientists in the United States report (see also Dentomaxillofacial Radiology).

"All measurements were recorded using calibrated thermoluminescent dosimetry (TLD), calibrated Unfors Model 583L dosemeter, and a calibrated Radcal MDH model 1015 dosemeter. The settings for all exposure were 60 kVp, 2.3 mA and 0.25 s using Kodak Insight (Class F) film. All backscatter measurements, in front of the shield, behind the shield, at the finger of the operator, the operator's chest, eyes and gonads were significantly below the maximum permissible radiation leakage as per the United States Food and Drug Administration regulations (100 mR h(-1)). Our measurements indicate that the exposure would be well within the occupational maximum permissible dose for an occupationally exposed person. Film dose was consistent with the manufacturer's recommendations. As a result of our measurements, the State of New York Bureau of Environmental Radiation Protection granted us a variance to use the NOMAD (TM) on a case-by-case basis," wrote A.D. Goren and colleagues, State University of New York.

The researchers concluded: "Our data have shown that the NOMAD (TM) presents risks that are no greater than with standard dental radiographic units to the patient or operator and the measured doses are well below recommended levels."

Goren and colleagues published their study in Dentomaxillofacial Radiology (Radiation exposure with the NOMAD(TM) portable X-ray system. Dentomaxillofacial Radiology, 2008;37(2):109-112).

For more information, contact A.D. Goren, SUNY Stony Brook, School Dental Medical, 129 Westchester Hall, Stony Brook, NY 11794, USA.

Publisher contact information for the journal Dentomaxillofacial Radiology is: British Institute Radiology, 36 Portland Place, London W1N 4AT, England.

Keywords: United States, Stony Brook, Life Sciences, Radiology, Dentistry, State University of New York.

This article was prepared by Health & Medicine Week editors from staff and other reports. Copyright 2008, Health & Medicine Week via

Source Citation
"Research from State University of New York has provided new information about dentomaxillofacial radiology." Health & Medicine Week 14 Apr. 2008: 1563. Academic OneFile. Web. 31 Dec. 2009. .

Gale Document Number:A214906343

Disclaimer:This information is not a tool for self-diagnosis or a substitute for professional care.

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