Properties of preprocessed sinogram data in x-ray computed tomography.

Properties of preprocessed sinogram data in x-ray computed tomography. Research Abstract Details 

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Properties of preprocessed sinogram data in x-ray computed tomography. Abstract Text:

Bruce R Whiting,Parinaz Massoumzadeh,Orville A Earl,Joseph A O'Sullivan,Donald L Snyder,Jeffrey F Williamson,

The accurate determination of x-ray signal properties is important to several computed tomography (CT) research and development areas, notably for statistical reconstruction algorithms and dose-reduction simulation. The most commonly used model of CT signal formation, assuming monoenergetic x-ray sources with quantum counting detectors obeying simple Poisson statistics, does not reflect the actual physics of CT acquisition. This paper describes a more accurate model, taking into account the energy-integrating detection process, nonuniform flux profiles, and data-conditioning processes. Methods are developed to experimentally measure and theoretically calculate statistical distributions, as well as techniques to analyze CT signal properties. Results indicate the limitations of current models and suggest improvements for the description of CT signal properties.

Properties of preprocessed sinogram data in x-ray computed tomography. Publishing Authors By Initials

BR Whiting,P Massoumzadeh,OA Earl,JA O'Sullivan,DL Snyder,JF Williamson,

For similar tomography, x-ray computed research abstracts see: tomography, x-ray computed research

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Properties of preprocessed sinogram data in x-ray computed tomography. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Medical physics

VOLUME: 33

Page Numbers: 3290-303

Journal Abbreviation:

ISSN: 0094-2405

DAY: 3

MONTH: Sep

YEAR: 2006

Properties of preprocessed sinogram data in x-ray computed tomography. Information

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LANGUAGE: eng

NlmUniqueID: 425746

Properties of preprocessed sinogram data in x-ray computed tomography. Keywords Mesh Terms:

KEYWORDS: Tomography, X-Ray Computed

MESH TERMS: methods

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Grant and Affiliation Information for Properties of preprocessed sinogram data in x-ray computed tomography.

AFFILIATION: Electronic Radiology Lab, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri 63110, USA. witingb@wustl.edu

Country: United States

AGENCY: United States NCI

GRANT: R21CA95408-01

ACRONYM: CA

MEDLINETA: Med Phys

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