A comparison of the response of storage phosphor and film radiography to small variations in X-ray exposure

Dento Maxillo Facial Radiology
C F HildeboltM W Vannier

Abstract

To determine the response to small repeated variations in X-ray exposure of storage phosphor (SP) plates compared with Ektaspeed Plus dental film. Exposure of SP plates and Ektaspeed Plus dental film was varied within a small range [8.62 microC kg-1 to 9.03 microC kg-1, (5%)]. Radiographs were digitized and SP plates read with a laser-based scanner. Nested analysis of variance, analysis of covariance, and regression analysis were used to test the relationship between exposure and the resulting signal. The relationship between exposure and signal for digital images of film radiographs was not significant whereas the corresponding relationship for SP images was highly significant (P < 0.001, R2 = 0.44). Over the narrow range of X-ray exposures studied there was a significant direct linear relationship between exposure and digital gray-scale values for SP images but not for digital images of Ektaspeed Plus films.

References

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Aug 1, 1995·Dento Maxillo Facial Radiology·G L ConoverD Anthony
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Citations

Apr 29, 1999·Endodontics & Dental Traumatology·C L Lavelle
May 18, 2005·Dento Maxillo Facial Radiology·F Haiter-NetoF N Bóscolo
Jun 14, 2006·Clinical Oral Investigations·Frank Du TréDaniel van Steenberghe
Sep 17, 2011·Journal of Applied Oral Science : Revista FOB·Renata Cordeiro TeixeiraIzabel Regina Fischer Rubira-Bullen
Dec 1, 2006·Journal of Applied Oral Science : Revista FOB·Izabel Regina Fischer Rubira-BullenJosé Roberto Pereira Lauris
Sep 11, 2003·Brazilian Dental Journal·Solange Maria de AlmeidaFrab Norberto Bóscolo
Nov 23, 2006·Brazilian Oral Research·Patrícia FreitasJosé Roberto Lauris
Jan 15, 2002·Pesquisa odontológica brasileira = Brazilian oral research·F N BóscoloF Haiter Neto

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