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Reduction of absorbed doses in radiography of the facial skeleton

Journal Article · · AJR, Am. J. Roentgenol.; (United States)
;
Radiation absorbed doses from radiography of the paranasal sinuses and the facial skeleton were measured with thermoluminescent dosimeters (TLD) on a phantom head using high-sensitivity screens in an Orbix stand. The entrance doses to the skin of the head ranged from 0.31 to 2.9 mGy per exposure. The absorbed dose from a full series of sinus exposures averaged 0.33 mGy for the oral mucous membrane, 0.33 mGy for the maxillary sinus mucous membrane, 0.11 mGy for the parotid gland, 0.15 mGy for the submandibular gland, 0.61 mGy for the eye lens, and 0.75 mGy for the thyroid gland region. A leaded soft collar adapted to the thyroid region reduced the thyroid doses by more than one order of magnitude, but also reduced the image field. The mean energy imparted from a full series of paranasal sinus projections was 4.8 mJ and from a total series of the facial skeleton, 7.9 mJ.
Research Organization:
Karolinska Inst., Huddinge, Sweden
OSTI ID:
6135658
Journal Information:
AJR, Am. J. Roentgenol.; (United States), Journal Name: AJR, Am. J. Roentgenol.; (United States) Vol. 143:5; ISSN AAJRD
Country of Publication:
United States
Language:
English

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Related Subjects

550602 -- Medicine-- External Radiation in Diagnostics-- (1980-)
560151* -- Radiation Effects on Animals-- Man
62 RADIOLOGY AND NUCLEAR MEDICINE
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL SHIELDS
BIOMEDICAL RADIOGRAPHY
BODY
BODY AREAS
DIAGNOSTIC TECHNIQUES
DOSES
DOSIMETRY
ENDOCRINE GLANDS
EYES
FACE
GLANDS
HEAD
MEDICINE
MEMBRANES
MOCKUP
MUCOUS MEMBRANES
NUCLEAR MEDICINE
ORGANS
PHANTOMS
RADIATION DOSES
RADIOLOGY
SALIVARY GLANDS
SENSE ORGANS
SHIELDS
SINUSES
SKELETON
SKIN
STRUCTURAL MODELS
THERMOLUMINESCENT DOSIMETRY
THYROID