A critical evaluation of xerocephalometry: Absorbed dose and diagnostic information

Kaugars, George E.; Fatouros, Panos P.

doi:10.1016/0030-4220(84)90167-1

Cited by 5 publications

(4 citation statements)

References 25 publications

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“…This was somehow antieipated, sinee the osseous landmarks were em-ployed in order to be easily visualized on conventional cephalometric radiographs (2). Proper modification of the conventional technique can highlight ' soft tissues, thereby minimizing the advantage of xeroradiography (41). Variations between observers , in identifying cephalometric landmarks are not re-• duced by either of these 2 competing radiographic ; techniques.…”

Section: Katsanuias and Lambrianidismentioning

confidence: 99%

“…Xeroradiographic plates are less sensitive than screen/film combinations to x-rays and thus require a higher radiation dose. The thyroid dose, for example, is higher by a rate of 60:1, and the bone marrow dose is approximately 100 times greater than by a rare earth combination system (41). Although the patient's dose in xeroradiography ean be reduced (by adding a copper filter 0.2 mm thick it is reduced by 50% (40)), it is still significantly higher in comparison with conventional cephalometrie technique.…”

Section: Katsanuias and Lambrianidismentioning

confidence: 99%

“…It is widely known that a patient's threshold dose has not yet been aeeurately determined and so it is impossible to speculate if a radiation dose is within an acceptable range. The policy of minimizing radiation to a patient unless a larger amount is justified by an anticipated inerease in diagnostic information is wise, and thus xeroradiography is not recommended for routine cephalometry (41). A eephalometrie xeroradiograph can be used in cases in which the most important issue is the increased radiographic information and not the possibility of radiation damage, if any, to the patient.…”

Section: Katsanuias and Lambrianidismentioning

confidence: 99%

“…A eephalometrie xeroradiograph can be used in cases in which the most important issue is the increased radiographic information and not the possibility of radiation damage, if any, to the patient. Cephalometrie xeroradiographs ean be used in the diagnosis and in the presurgical planning of maxillofacial problems such as benign and malignant lesions, which may be outlined with difficulty on conventional radiographs, since cephalometric xeroradiographs provide better simultaneous visualization of bone, cartilage and soft dssues (40,41). : '…”

Section: Katsanuias and Lambrianidismentioning

confidence: 99%

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Xeroradiography and its application to dentistry

Katsanulas

Lambrianidis

1989

Dental Traumatology

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Xeroradiography is a highly accurate electrostatic imaging technique. In this technique a conventional single-phase dental x-ray unit is used as an x-ray source, but instead of a silver-halide film image, a uniformly charged selenium alloy plate housed in a light-proof cassette is used. In this article the equipment, procedure, properties and artifacts related to the xeroradiographic technique are described. An evaluation of the xeroradiographic images is also presented. Xeroradiography, which requires only about one-third of the dose required for conventional radiographs, is a valuable alternative to conventional radiography for detecting carious lesions, calculus deposits and periodontal disease. It is also of value in interpreting periapical structures.

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Section: Katsanuias and Lambrianidismentioning

confidence: 99%

Section: Katsanuias and Lambrianidismentioning

confidence: 99%

Section: Katsanuias and Lambrianidismentioning

confidence: 99%

Section: Katsanuias and Lambrianidismentioning

confidence: 99%

See 2 more Smart Citations

Xeroradiography and its application to dentistry

Katsanulas

Lambrianidis

1989

Dental Traumatology

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Vergleichende Untersuchung zur Möglichkeit der Dosisreduzierung von Fernröntgenseitenaufnahmen

Ruppenthal

Fricke

Sergl

et al. 1992

Fortschritte der Kieferorthopädie

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Thanks to their capability for post-processing of image data, the digital radiological techniques introduced from 1970 onwards permit dose reduction with no loss of clinical information. The aim of this study was to establish the extent of possible dose reduction in orthodontic lateral cephalography. For this purpose, lateral cephalograms of a head phantom taken with varying radiation doses (5 to 150 mAs, constant 70 kV) were evaluated. The evaluations of ten judges were compared statistically. Conventional lateral cephalograms showed a statistically proven superiority of a number of exposure parameters for the sagittal and vertical localisation of reference points. This correlated with the radiological density of the structures. In contrast to the conventional technique, the reference points in all images obtained by digital luminescence radiography showed no such tendency. Digital luminescence thus meets the clinical need to reduce radiation dose (to about 20% of the usual dose) while providing no less diagnostic information.

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