作者
Ruben Pauwels, Jilke Beinsberger, Harry Stamatakis, Kostas Tsiklakis, Adrian Walker, Hilde Bosmans, Ria Bogaerts, Reinhilde Jacobs, Keith Horner, SEDENTEXCT Project Consortium
发表日期
2012/7/1
期刊
Oral surgery, oral medicine, oral pathology and oral radiology
卷号
114
期号
1
页码范围
127-135
出版商
Mosby
简介
OBJECTIVE
The purpose was to evaluate the perceived spatial and contrast resolution for a wide range of cone-beam computed tomography (CBCT) devices.
STUDY DESIGN
A customized polymethyl methacrylate (PMMA) phantom was developed. Inserts containing a line-pair and rod pattern were used. The phantom was scanned with 13 CBCT devices and 1 multislice CT (MSCT) device using a variety of scanning protocols. The images were presented to 4 observers for scoring.
RESULTS
The observer scores showed excellent agreement. A wide range was seen in image quality between CBCT exposure protocols. Compared with the average CBCT scores, the MSCT protocols scored lower for the line-pair insert but higher for the rod insert.
CONCLUSIONS
CBCT devices are generally suitable for the visualization of high-contrast structures. Certain exposure protocols can be used for depicting low-contrast …
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R Pauwels, J Beinsberger, H Stamatakis, K Tsiklakis… - Oral surgery, oral medicine, oral pathology and oral …, 2012