Three-dimensional anisotropic adaptive filtering of projection data for noise reduction in cone beam CT

Purpose: The combination of quickly rotating C-arm gantry with digital flat panel has enabled the acquisition of three-dimensional data (3D) in the interventional suite. However, image quality is still somewhat limited since the hardware has not been optimized for CT imaging. Adaptive anisotropic fi...

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Bibliographic Details
Published in:	Medical physics (Lancaster) Vol. 38; no. 11; pp. 5896 - 5909
Main Authors:	Maier, Andreas, Wigström, Lars, Hofmann, Hannes G., Hornegger, Joachim, Zhu, Lei, Strobel, Norbert, Fahrig, Rebecca
Format:	Journal Article
Language:	English
Published:	United States American Association of Physicists in Medicine 01.11.2011
Subjects:	ALGORITHMS Animals Anisotropy BEAMS C-arm computed tomography (CT) Computed tomography computerised tomography COMPUTERIZED SIMULATION COMPUTERIZED TOMOGRAPHY Cone-Beam Computed Tomography - methods DATA ACQUISITION DIFFERENTIAL THERMAL ANALYSIS DOSIMETRY filtering theory FILTERS GPU hardware acceleration Heart - diagnostic imaging image enhancement IMAGE PROCESSING image reconstruction image resolution Imaging, Three-Dimensional - methods IN VIVO INTERFACES low dose Medical image noise Medical image reconstruction Medical imaging MEDICIN MEDICINE Modulation transfer functions NOISE numerical analysis Numerical approximation and analysis optical transfer function PHANTOMS Phantoms, Imaging RADIATION DOSES Radiation Imaging Physics Radiographic Image Enhancement - methods RADIOLOGY AND NUCLEAR MEDICINE Reconstruction SPATIAL RESOLUTION Tensor methods TRAJECTORIES TRANSFER FUNCTIONS X RADIATION X‐ray imaging image enhancement noise low dose hardware acceleration GPU C-arm computed tomography (CT) artifacts
ISSN:	0094-2405, 2473-4209, 0094-2405
Online Access:	Get full text
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