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Comparison of the performance of intraoral X-ray sensors using objective image quality assessment

Hellén-Halme, Kristina; Johansson, Curt and Nilsson, Mats LU (2016) In Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology 121(5). p.129-137
Abstract

Objectives The main aim of this study was to evaluate the performance of 10 individual sensors of the same make, using objective measures of key image quality parameters. A further aim was to compare 8 brands of sensors. Study Design Ten new sensors of 8 different models from 6 manufacturers (i.e., 80 sensors) were included in the study. All sensors were exposed in a standardized way using an X-ray tube voltage of 60 kVp and different exposure times. Sensor response, noise, low-contrast resolution, spatial resolution and uniformity were measured. Results Individual differences between sensors of the same brand were surprisingly large in some cases. There were clear differences in the characteristics of the different brands of sensors.... (More)

Objectives The main aim of this study was to evaluate the performance of 10 individual sensors of the same make, using objective measures of key image quality parameters. A further aim was to compare 8 brands of sensors. Study Design Ten new sensors of 8 different models from 6 manufacturers (i.e., 80 sensors) were included in the study. All sensors were exposed in a standardized way using an X-ray tube voltage of 60 kVp and different exposure times. Sensor response, noise, low-contrast resolution, spatial resolution and uniformity were measured. Results Individual differences between sensors of the same brand were surprisingly large in some cases. There were clear differences in the characteristics of the different brands of sensors. The largest variations were found for individual sensor response for some of the brands studied. Also, noise level and low contrast resolution showed large variations between brands. Conclusions Sensors, even of the same brand, vary significantly in their quality. It is thus valuable to establish action levels for the acceptance of newly delivered sensors and to use objective image quality control for commissioning purposes and periodic checks to ensure high performance of individual digital sensors.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
volume
121
issue
5
pages
129 - 137
publisher
Elsevier
external identifiers
  • Scopus:84964053612
ISSN
2212-4403
DOI
10.1016/j.oooo.2016.01.016
language
English
LU publication?
yes
id
edd638d9-bd3c-4eff-8945-98678c655c8c
date added to LUP
2016-06-01 14:32:19
date last changed
2016-12-04 04:52:01
@misc{edd638d9-bd3c-4eff-8945-98678c655c8c,
  abstract     = {<p>Objectives The main aim of this study was to evaluate the performance of 10 individual sensors of the same make, using objective measures of key image quality parameters. A further aim was to compare 8 brands of sensors. Study Design Ten new sensors of 8 different models from 6 manufacturers (i.e., 80 sensors) were included in the study. All sensors were exposed in a standardized way using an X-ray tube voltage of 60 kVp and different exposure times. Sensor response, noise, low-contrast resolution, spatial resolution and uniformity were measured. Results Individual differences between sensors of the same brand were surprisingly large in some cases. There were clear differences in the characteristics of the different brands of sensors. The largest variations were found for individual sensor response for some of the brands studied. Also, noise level and low contrast resolution showed large variations between brands. Conclusions Sensors, even of the same brand, vary significantly in their quality. It is thus valuable to establish action levels for the acceptance of newly delivered sensors and to use objective image quality control for commissioning purposes and periodic checks to ensure high performance of individual digital sensors.</p>},
  author       = {Hellén-Halme, Kristina and Johansson, Curt and Nilsson, Mats},
  issn         = {2212-4403},
  language     = {eng},
  number       = {5},
  pages        = {129--137},
  publisher    = {ARRAY(0x9a93708)},
  series       = {Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology},
  title        = {Comparison of the performance of intraoral X-ray sensors using objective image quality assessment},
  url          = {http://dx.doi.org/10.1016/j.oooo.2016.01.016},
  volume       = {121},
  year         = {2016},
}