Investigation of optimum grid for digital radiography

Kentaro Naka; Nobukazu Tanaka; Seiji Kumazawa; Junji Morishita; Hidetaka Arimura; Fukai Toyofuku; Masafumi Ohki; Yoshiharu Higashida

doi:10.1007/978-3-642-03879-2_43

Investigation of optimum grid for digital radiography

Kentaro Naka, Nobukazu Tanaka, Seiji Kumazawa, Junji Morishita, Hidetaka Arimura, Fukai Toyofuku, Masafumi Ohki, Yoshiharu Higashida

Division of medical Quantum Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The purpose of this study was to investigate the optimal anti-scatter grid (grid) selection for digital radiography with a computed radiography (CR) system. Anterior-posterior lumbar spine radiographies were performed with no grid and grid ratios of 5, 8, 10, 12 and 14 under the same exposure conditions. An x-ray tube voltage of 80 kV and 20 mAs were used in all radiographies. Signal-to-noise-ratio (SNR) for all radiographic technique was measured as an image quality index. To consider the effect of image quality, scatter fractions, incident doses to imaging plate (IP) were also measured. The use of grid ratios of 10, 12 and 14 provided higher SNR than those of the images with grid ratios of 5 and 8 when same exposure conditions were used. Phantom radiographs also indicated that the images with 10, 12 and 14 grid ratios improved image quality over that obtainable with images of lower grid ratios although the images look noisy.

Original language	English
Title of host publication	World Congress on Medical Physics and Biomedical Engineering
Subtitle of host publication	Diagnostic Imaging
Publisher	Springer Verlag
Pages	149-151
Number of pages	3
Edition	2
ISBN (Print)	9783642038785
DOIs	https://doi.org/10.1007/978-3-642-03879-2_43
Publication status	Published - 2009
Event	World Congress on Medical Physics and Biomedical Engineering: Diagnostic Imaging - Munich, Germany Duration: Sept 7 2009 → Sept 12 2009

Publication series

Name	IFMBE Proceedings
Number	2
Volume	25
ISSN (Print)	1680-0737

Other

Other	World Congress on Medical Physics and Biomedical Engineering: Diagnostic Imaging
Country/Territory	Germany
City	Munich
Period	9/7/09 → 9/12/09

All Science Journal Classification (ASJC) codes

Bioengineering
Biomedical Engineering

Access to Document

10.1007/978-3-642-03879-2_43

Cite this

Naka, K., Tanaka, N., Kumazawa, S., Morishita, J., Arimura, H., Toyofuku, F., Ohki, M., & Higashida, Y. (2009). Investigation of optimum grid for digital radiography. In World Congress on Medical Physics and Biomedical Engineering: Diagnostic Imaging (2 ed., pp. 149-151). (IFMBE Proceedings; Vol. 25, No. 2). Springer Verlag. https://doi.org/10.1007/978-3-642-03879-2_43

Naka, K, Tanaka, N, Kumazawa, S, Morishita, J , Arimura, H, Toyofuku, F, Ohki, M & Higashida, Y 2009, Investigation of optimum grid for digital radiography. in World Congress on Medical Physics and Biomedical Engineering: Diagnostic Imaging. 2 edn, IFMBE Proceedings, no. 2, vol. 25, Springer Verlag, pp. 149-151, World Congress on Medical Physics and Biomedical Engineering: Diagnostic Imaging, Munich, Germany, 9/7/09. https://doi.org/10.1007/978-3-642-03879-2_43

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abstract = "The purpose of this study was to investigate the optimal anti-scatter grid (grid) selection for digital radiography with a computed radiography (CR) system. Anterior-posterior lumbar spine radiographies were performed with no grid and grid ratios of 5, 8, 10, 12 and 14 under the same exposure conditions. An x-ray tube voltage of 80 kV and 20 mAs were used in all radiographies. Signal-to-noise-ratio (SNR) for all radiographic technique was measured as an image quality index. To consider the effect of image quality, scatter fractions, incident doses to imaging plate (IP) were also measured. The use of grid ratios of 10, 12 and 14 provided higher SNR than those of the images with grid ratios of 5 and 8 when same exposure conditions were used. Phantom radiographs also indicated that the images with 10, 12 and 14 grid ratios improved image quality over that obtainable with images of lower grid ratios although the images look noisy.",

author = "Kentaro Naka and Nobukazu Tanaka and Seiji Kumazawa and Junji Morishita and Hidetaka Arimura and Fukai Toyofuku and Masafumi Ohki and Yoshiharu Higashida",

year = "2009",

doi = "10.1007/978-3-642-03879-2_43",

language = "English",

isbn = "9783642038785",

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AU - Naka, Kentaro

AU - Tanaka, Nobukazu

AU - Kumazawa, Seiji

AU - Morishita, Junji

AU - Arimura, Hidetaka

AU - Toyofuku, Fukai

AU - Ohki, Masafumi

AU - Higashida, Yoshiharu

PY - 2009

Y1 - 2009

N2 - The purpose of this study was to investigate the optimal anti-scatter grid (grid) selection for digital radiography with a computed radiography (CR) system. Anterior-posterior lumbar spine radiographies were performed with no grid and grid ratios of 5, 8, 10, 12 and 14 under the same exposure conditions. An x-ray tube voltage of 80 kV and 20 mAs were used in all radiographies. Signal-to-noise-ratio (SNR) for all radiographic technique was measured as an image quality index. To consider the effect of image quality, scatter fractions, incident doses to imaging plate (IP) were also measured. The use of grid ratios of 10, 12 and 14 provided higher SNR than those of the images with grid ratios of 5 and 8 when same exposure conditions were used. Phantom radiographs also indicated that the images with 10, 12 and 14 grid ratios improved image quality over that obtainable with images of lower grid ratios although the images look noisy.

AB - The purpose of this study was to investigate the optimal anti-scatter grid (grid) selection for digital radiography with a computed radiography (CR) system. Anterior-posterior lumbar spine radiographies were performed with no grid and grid ratios of 5, 8, 10, 12 and 14 under the same exposure conditions. An x-ray tube voltage of 80 kV and 20 mAs were used in all radiographies. Signal-to-noise-ratio (SNR) for all radiographic technique was measured as an image quality index. To consider the effect of image quality, scatter fractions, incident doses to imaging plate (IP) were also measured. The use of grid ratios of 10, 12 and 14 provided higher SNR than those of the images with grid ratios of 5 and 8 when same exposure conditions were used. Phantom radiographs also indicated that the images with 10, 12 and 14 grid ratios improved image quality over that obtainable with images of lower grid ratios although the images look noisy.

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PB - Springer Verlag

T2 - World Congress on Medical Physics and Biomedical Engineering: Diagnostic Imaging

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ER -

Investigation of optimum grid for digital radiography

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