Practical considerations for noise power spectra estimation for clinical CT scanners

Local noise power spectra (NPS) have been commonly calculated to represent the noise properties of CT imaging systems, but their properties are significantly affected by the utilized calculation schemes. In this study, the effects of varied calculation parameters on the local NPS were analyzed, and...

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Veröffentlicht in:	Journal of applied clinical medical physics 2016-05, Vol.17 (3), p.392-407
Hauptverfasser:	Dolly, Steven, Chen, Hsin‐Chen, Anastasio, Mark, Mutic, Sasa, Li, Hua
Format:	Artikel
Sprache:	eng
Schlagworte:	Accuracy Algorithms background removal computed tomography Computer Simulation Humans Image Processing, Computer-Assisted - methods image quality assessment iterative CT reconstruction Medical Imaging Methods Noise noise power spectrum Optimization Phantoms, Imaging Quality Radiation therapy Scanners Signal-To-Noise Ratio Studies Tomography Scanners, X-Ray Computed Tomography, X-Ray Computed - methods
Online-Zugang:	Volltext
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