Radiation-absorbed doses and energy imparted from panoramic tomography, cephalometric radiography, and occlusal film radiography in children

Journal Article · Sat May 01 04:00:00 EDT 1982 · Oral Surg., Oral Med., Oral Pathol.; (United States)

DOI:https://doi.org/10.1016/0030-4220(82)90472-8· OSTI ID:6702906

Bankvall, G; Hakansson, H A

The absorbed doses and energy imparted from radiographic examinations of children, using panoramic tomography (PTG), cephalometric radiography (CPR), and maxillary frontal occlusal overview (FOO), were examined. The absorbed dose at various sites of the head were measured with TL dosimeters in a phantom and in patients. The energy imparted was calculated from measurements of areal exposure using a planparallel ionization chamber. The maximum absorbed doses for panoramic tomography were located around the lateral rotation center, for cephalometric radiography in the left (tube side) parotid region, and for frontal occlusal radiography in the nose. The absorbed doses in the eyes, thyroid gland, and skin are discussed and compared with previous reports and, for the most part, are found to be in agreement. The mean energy imparted from all three examination methods is 5 mJ with about 57 percent from panoramic, 33 percent from cephalometric, and 10 percent from frontal occlusal examinations. The energy imparted from cephalometric radiography can be reduced to about 10 percent with the use of an improved examination technique, leaving panoramic tomography responsible for contributing about 80 percent of the total energy imparted.

• Research Organization: Department of Radiation Physics, University Hospital, Lund, Sweden
• OSTI ID: 6702906
• Journal Information: Oral Surg., Oral Med., Oral Pathol.; (United States), Journal Name: Oral Surg., Oral Med., Oral Pathol.; (United States) Vol. 53:5; ISSN OSOMA
• Country of Publication: United States
• Language: English

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62 RADIOLOGY AND NUCLEAR MEDICINE
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AGE GROUPS
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOMEDICAL RADIOGRAPHY
BODY
BODY AREAS
CHILDREN
COMPARATIVE EVALUATIONS
DIAGNOSTIC TECHNIQUES
DOSES
ENDOCRINE GLANDS
EYES
FACE
GLANDS
HEAD
MEDICINE
MOCKUP
NUCLEAR MEDICINE
ORGANS
PATIENTS
PHANTOMS
RADIATION DOSES
RADIATION EFFECTS
RADIOLOGY
SENSE ORGANS
SKIN
STRUCTURAL MODELS
THYROID
TOMOGRAPHY