Significant reduction in dental cone beam computed tomography (CBCT) eye dose through the use of leaded glasses

In light of the increased recognition of the potential for lens opacification after low-dose radiation exposures, we investigated the effect of leaded eyeglasses worn during dental cone-beam computerized tomography (CBCT) procedures on the radiation absorbed dose to the eye and suggest simple method...

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Bibliographic Details
Published in:Oral surgery, oral medicine, oral pathology, oral radiology and endodontics Vol. 112; no. 4; pp. 502 - 507
Main Authors: Prins, R., Dauer, L.T., Colosi, D.C., Quinn, B., Kleiman, N.J., Bohle, G.C., Holohan, B., Al-Najjar, A., Fernandez, T., Bonvento, M., Faber, R.D., Ching, H., Goren, A.D.
Format: Journal Article
Language:English
Published: New York, NY Mosby, Inc 01.10.2011
Elsevier
Subjects:
Adult
Biological and medical sciences
Brain - radiation effects
Cataract - prevention & control
Cataracts
Child, Preschool
Computed tomography
Cone-Beam Computed Tomography - methods
Dosimetry
Eye
Eye - radiation effects
Eye lens
Eye Protective Devices
Female
Humans
imaging
Lead
Lens, Crystalline - radiation effects
Luminescent Measurements
Male
Medical sciences
Otorhinolaryngology. Stomatology
Pediatrics
Phantoms, Imaging
Radiation
Radiation Dosage
Radiation Protection - instrumentation
Radiography, Dental - methods
Scanning
Surgery
Thermoluminescent Dosimetry
Eye
Reduction
Radiodiagnosis
Medical imagery
Computerized axial tomography
Tooth
Dose
Cone beam
ISSN:1079-2104, 1528-395X, 1528-395X
Online Access:Get full text
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Summary:In light of the increased recognition of the potential for lens opacification after low-dose radiation exposures, we investigated the effect of leaded eyeglasses worn during dental cone-beam computerized tomography (CBCT) procedures on the radiation absorbed dose to the eye and suggest simple methods to reduce risk of radiation cataract development. Dose measurements were conducted with the use of 3 anthropomorphic phantoms: male (Alderson radiation therapy phantom), female (CIRS), and juvenile male (CIRS). All exposures were performed on the same dental CBCT machine (Imtec, Ardmore, OK) using 2 different scanning techniques but with identical machine parameters (120 kVp, 3.8 mA, 7.8 s). Scans were performed with and without leaded glasses and repeated 3 times. All measurements were recorded using calibrated thermoluminescent dosimeters and optical luminescent dosimetry. Leaded glasses worn by adult and pediatric patients during CBCT scans may reduce radiation dose to the lens of the eye by as much as 67% (from 0.135 ± 0.004 mGy to 0.044 ± 0.002 mGy in pediatric patients). Leaded glasses do not appear to have a deleterious effect on the image quality in the area of clinical significance for dental imaging.
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ISSN:1079-2104
1528-395X
1528-395X
DOI:10.1016/j.tripleo.2011.04.041