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Multihole collimators are the most important piece of instrumentation in determining the for suppression of hole-pattern artifacts in high-energy collimators}, author={A. Formiconi and A. R. Formiconi, F. Di Martino, D. Volterrani, A. Passeri. Request PDF on ResearchGate | Study of high-energy multihole collimators | Recently, a general Andreas Formiconi at University of Florence . AR Formiconi. Study of high-energy multihole collimators. Authors: Formiconi, A. R.; di Martino, F.; Volterrani, D.; Passeri, A. Publication: IEEE Transactions on Nuclear Science, .

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Abstract In this article the present knowledge of the collimators used for single photon imaging in Nuclear Medicine is recapped. References Publications referenced by this paper.


In the latter case, please turn on Javascript support in your web browser and reload this page. Difficulties and some new perspectives on avoiding both penetration and hole pattern artifacts while designing high-energy collimators are mentioned.

Collimator characteristics and design. The Quarterly Journal of Nuclear Medicine: In the introduction, the classic formulas to describe the performances of multihole collimator are presented with an overview of the basic concepts.

DewarajaMichael LjungbergKenneth F. How does Europe PMC derive its citations network? Instrument – device Detectors Mathematics. Find all citations in this journal default. The geometrical system response is determined in closed form in frequency space. Get permission to re-use this article.


The problem of performances optimization in collimator design is described in section Collimator design. Europe PMC requires Javascript to function effectively. Nowadays a rather complete theoretical description of the collimator geometrical formicconi is available.

Collimator design for single photon emission tomography S. Monte Carlo simulation study. Sandler Journal of nuclear medicine: A cpllimators parallel hole collimator for high resolution imaging of medium energy radionuclides.

Skip to search form Skip to main content. Vahid MoslemiMansour Ashoor Annals of nuclear medicine Institute of Physics and Engineering in Medicine IPEM’s aim is to promote the advancement of physics and engineering applied to medicine and biology for the public benefit.

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Collimators. – Abstract – Europe PMC

IPEM publishes scientific journals and books and organises conferences to disseminate knowledge and support members in their development. Study of high-energy multihole collimators. Sign up for new issue notifications.

By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy PolicyTerms of Serviceand Dataset License. Click here to close this overlay, or press the “Escape” key on your keyboard. This closed form accounts for the known efficiency and resolution formulae for parallel beam, fan beam, cone beam and astigmatic collimators as well as for the most frequent hole array patterns and hole shapes.


A complete theory of camera multihole collimators is presented. In the subsequent sections, the tools available for the characterization of multihole collimators are described.

Geometrical response of multihole collimators

This site uses cookies. Morphologic artifacts Search for additional papers on this topic. The point spread function in the space domain for a certain collimator and source position can be calculated via a discrete fast Fourier transform. Beside the complete theoretical definition of the response of multihole collimators, this theory allows the collinators of accurate models of the geometrical response for SPECT reconstruction and it is suitable for designing new collimators. Geometrical response of multihole collimators.

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