Model‐based CT performance assessment and optimization for iodinated and noniodinated imaging tasks as a function of kVp and body size

Purpose: The goal of this study was to assess the comparative performance of iterative reconstruction in space (IRIS) and filtered back projection (FBP) reconstruction algorithms in terms of image quality and dose across kVps and phantom sizes. Methods: The ACR CT phantom (model 464) was supplemente...

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Veröffentlicht in:	Medical physics (Lancaster) 2014-08, Vol.41 (8Part1), p.081910-n/a
Hauptverfasser:	Samei, Ehsan, Richard, Samuel, Lurwitz, Lynne
Format:	Artikel
Sprache:	eng
Schlagworte:	60 APPLIED LIFE SCIENCES ALGORITHMS Area Under Curve Biological material, e.g. blood, urine Haemocytometers biological tissues Body Size - radiation effects COMPARATIVE EVALUATIONS Computed tomography Computer Simulation Computer tomography Computerised tomographs computerised tomography COMPUTERIZED TOMOGRAPHY Copper Digital computing or data processing equipment or methods, specially adapted for specific applications dose reduction dosimetry Dosimetry/exposure assessment feature extraction Image data processing or generation, in general image denoising Image enhancement or restoration, e.g. from bit‐mapped to bit‐mapped creating a similar image IMAGE PROCESSING image quality Image quality assessment image reconstruction image resolution IODINE iterative methods iterative reconstruction kV effect Medical image contrast Medical image noise medical image processing Medical image reconstruction Medical image spatial resolution Models, Biological Modulation transfer functions Noise OPTIMIZATION PHANTOMS Phantoms, Imaging Polymethyl Methacrylate Radiation Dosage RADIATION DOSES Radiation Imaging Physics Reconstruction ROC Curve ROTATION Scintigraphy sensitivity analysis SPATIAL RESOLUTION task based performance Tomography, X-Ray Computed - instrumentation Tomography, X-Ray Computed - methods Zinc
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