Toward standardized quantitative image quality (IQ) assessment in computed tomography (CT): A comprehensive framework for automated and comparative IQ analysis based on ICRU Report 87
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- 作者：Gregor Pahna ; Stephan Skornitzkea ; Hans-Peter Schlemmerb ; Hans-Ulrich Kauczora ; Wolfram Stillera ; b ; wolfram.stiller@med.uni-heidelberg.de" class="auth_mail" title="E-mail the corresponding author
- 关键词：Computed tomography (CT) ; Quantitative image quality assessment ; Modulation transfer function (MTF) ; Noise-power spectrum (NPS)
- 刊名：Physica Medica
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：32
- 期：1
- 页码：104-115
- 全文大小：5226 K
文摘
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QA as well as CT technology, protocol, and post-processing evaluation require standardized IQ.
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A framework for standardized quantitative image quality analysis in CT is presented.
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Quantitative IQ metrics include MTF, NPS, CT number accuracy, uniformity, CNR, and SNR.
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An extendable design allows for inclusion of further IQ metrics and phantom types.
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Simultaneous automated processing of image datasets enables comparative IQ analysis.