Impact of scale standardization on images of digital radiography systems

被引：12
|
作者：
Versteeg, CH
Sanderink, GCH
Geraets, WGM
vanderStelt, PF
机构：
[1] Department of Oral Radiology, Acad. Centre for Dentistry Amsterdam, Amsterdam
[2] Department of Oral Radiology, 1066 EA Amsterdam
来源：
DENTOMAXILLOFACIAL RADIOLOGY | 1997年 / 26卷 / 06期
关键词：
radiography; dental; imaging processing; computer-assisted; diagnostic imaging;
D O I：
10.1038/sj.dmfr.4600296
中图分类号：
R78 [口腔科学];
学科分类号：
1003 ;
摘要：
Objectives: To test the effect of altering image size on diagnostic quality. Methods: Endodontic files, size 10 and 15 were prepared to full root length and 1.5 mm short, in upper and lower molars and premolars. Digital images of the Sidexis (S) and Visualix/Vixa (V) system were reduced in size to Digora (D) scale, and the D images were enlarged to S scale. ROC analysis was performed and data analysed with MANOVA statistics. Results: Assessment of root canal length with file size 10 was less accurate for the S images reduced in size, compared with the original S images (P < 0.011). All other differences were not significant (P > 0.081). Conclusions: Relevant diagnostic information may be lost when images are reduced in size. Therefore, for optimal presentation, the smaller images should be enlarged rather than the larger ones reduced.
引用
收藏
页码：337 / 343
页数：7
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