Contrast-to-noise and exposure measurements of an aSi:H/CsI(Tl) flat-panel based digital radiography system using a QC chest phantom

Xinming Liu; Chris C. Shaw; Peter Balter; S. Cheenu Kappadath; Chao Jen Lai

doi:10.1117/12.480473

Contrast-to-noise and exposure measurements of an aSi:H/CsI(Tl) flat-panel based digital radiography system using a QC chest phantom

Xinming Liu, Chris C. Shaw, Peter Balter, S. Cheenu Kappadath, Chao Jen Lai

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

The amorphous silicon (a-Si:H) flat panel imaging systems have recently become commercially available and gained acceptance as a promising candidates for implementing digital radiography. In this work, SNRs, CNRs and figure-of-merit, defined as CNR²/SEEs, were measured for a commercial a-Si:H/CsI(Tl) flat-panel digital chest radiography system as a function of the kVp for three different regions in the images of a chest phantom: lung, heart and subphrenic. Using these measurements, issues of image quality and optimal selection of the kVp are discussed.

Original language	English (US)
Pages (from-to)	826-832
Number of pages	7
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5030 II
DOIs	https://doi.org/10.1117/12.480473
State	Published - 2003
Event	Medical Imaging 2003: Physics of Medical Imaging - San Diego, CA, United States Duration: Feb 16 2003 → Feb 18 2003

Keywords

Contrast-to-noise ratio
Digital radiography
Figure-of-merit
Flat panel
Signal-to-noise ratio

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.480473

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Contrast-to-noise and exposure measurements of an aSi:H/CsI(Tl) flat-panel based digital radiography system using a QC chest phantom. / Liu, Xinming; Shaw, Chris C.; Balter, Peter et al.
In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5030 II, 2003, p. 826-832.

Research output: Contribution to journal › Conference article › peer-review

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abstract = "The amorphous silicon (a-Si:H) flat panel imaging systems have recently become commercially available and gained acceptance as a promising candidates for implementing digital radiography. In this work, SNRs, CNRs and figure-of-merit, defined as CNR2/SEEs, were measured for a commercial a-Si:H/CsI(Tl) flat-panel digital chest radiography system as a function of the kVp for three different regions in the images of a chest phantom: lung, heart and subphrenic. Using these measurements, issues of image quality and optimal selection of the kVp are discussed.",

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AU - Shaw, Chris C.

AU - Balter, Peter

AU - Kappadath, S. Cheenu

AU - Lai, Chao Jen

PY - 2003

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N2 - The amorphous silicon (a-Si:H) flat panel imaging systems have recently become commercially available and gained acceptance as a promising candidates for implementing digital radiography. In this work, SNRs, CNRs and figure-of-merit, defined as CNR2/SEEs, were measured for a commercial a-Si:H/CsI(Tl) flat-panel digital chest radiography system as a function of the kVp for three different regions in the images of a chest phantom: lung, heart and subphrenic. Using these measurements, issues of image quality and optimal selection of the kVp are discussed.

AB - The amorphous silicon (a-Si:H) flat panel imaging systems have recently become commercially available and gained acceptance as a promising candidates for implementing digital radiography. In this work, SNRs, CNRs and figure-of-merit, defined as CNR2/SEEs, were measured for a commercial a-Si:H/CsI(Tl) flat-panel digital chest radiography system as a function of the kVp for three different regions in the images of a chest phantom: lung, heart and subphrenic. Using these measurements, issues of image quality and optimal selection of the kVp are discussed.

KW - Contrast-to-noise ratio

KW - Digital radiography

KW - Figure-of-merit

KW - Flat panel

KW - Signal-to-noise ratio

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JF - Proceedings of SPIE - The International Society for Optical Engineering

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Contrast-to-noise and exposure measurements of an aSi:H/CsI(Tl) flat-panel based digital radiography system using a QC chest phantom

Abstract

Keywords

ASJC Scopus subject areas

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