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AN EVALUATION OF THE SENS-A-RAY DIGITAL DENTAL IMAGING-SYSTEM
被引：29
作者：
MCDONNELL, D
PRICE, C
机构：
[1] Faculty of Dentistry, University of British Columbia, Vancouver
关键词：
RADIOGRAPHY;
DENTAL;
RADIOGRAPHIC IMAGE ENHANCEMENT;
IMAGE PROCESSING;
COMPUTER ASSISTED;
D O I：
10.1259/dmfr.22.3.8299829
中图分类号：
R78 [口腔科学];
学科分类号：
1003 ;
摘要：
The Sens-A-Ray digital imaging system was compared with group D- and E-speed intraoral radiographic film with respect to resolution, speed and image quality. Using a line-pair plate, resolution was determined to be 10 line-pairs per millimetre. With a constant potential X-ray source, the speed of the system was over three times that of E-speed emulsion and the response of pixel value to exposure was linear. Absorption curves with aluminium showed a similar response to D-speed film. An aluminium foil test object was used to compare the Sens-A-Ray system with both film types. Thirty observers were scored for successful identification of a pattern of holes in the test object. There was little difference between D- and E-speed film groups, and successful identification was significantly reduced with the Sens-A-Ray images when compared with D- and E-speed films.
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页码：121 / 126
页数：6
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