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PubMed · 840196

Computer simulation study of Siemens star x-ray image artifacts.

S R Amtey·R K Tyson
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Abstract

In the Siemens star image, exact determination of the first disappearance frequency, which is used to measure the focal spot size, is difficult since the disappearance band has a finite width and the image also has other artifacts. The origin of these artifacts and their appearance was studied by Siemens star image simulation on a digital computer. The simulated images were manipulated by using many different modulation and phase transfer functions. It is shown that the bending of spokes is not related to zero contrast; exact triplet splitting can occur only at the disappearance frequency, and therefore splitting is a valuable indicator of that frequency.

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ComputersModels, TheoreticalPhysical PhenomenaPhysicsRadiographyTechnology, RadiologicX-RaysJournal Article

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S R Amtey, R K Tyson. Computer simulation study of Siemens star x-ray image artifacts.. https://doi.org/10.1118/1.594352

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