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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Recently, we found that the collimator-to-detector gap greatly influences the hole-pattern artifacts.

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FormiconiDonald Lee GunterEleonora Vanzi Published in IEEE Transactions on Nuclear Science Multihole collimators are the most important piece of instrumentation in determining the tradeoff between spatial resolution and noise in nuclear medicine images. Difficulties and some new perspectives on avoiding both penetration and hole pattern artifacts while collimayors high-energy collimators are mentioned.

Geometrical response of multihole collimators

Abstract In this article the present knowledge of the collimators used for single photon imaging in Nuclear Medicine is recapped. Europe PMC requires Javascript to function effectively. Sign up for new issue notifications. DewarajaMichael LjungbergKenneth F. Get permission to re-use this article.


Either your web browser doesn’t support Javascript or it is currently turned off. Or filter your current search. Study of high-energy multihole collimators. Sandler Journal of nuclear medicine: 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.

IPEM’s aim is to promote the advancement coollimators physics and engineering applied to medicine and biology for the public benefit. By continuing to use this site you agree to our use of cookies. This site uses cookies.

Physics of formicconi design. The Quarterly Journal of Nuclear Medicine: Topics Discussed in This Paper. SPECT imaging of fluorine Vahid MoslemiMansour Ashoor Annals 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.

Andreas Formiconi – Google Scholar Citations

References Publications co,limators by this paper. Collimator characteristics and design. Formiconi Physics in medicine and biology Click here to close this overlay, or press the “Escape” key on your keyboard. Beside the complete theoretical definition of the response of multihole collimators, this theory allows the definition of accurate models of the geometrical response for SPECT reconstruction and it is suitable for designing new collimators.

A design strategy for suppression of hole-pattern artifacts in high-energy collimators

Morphologic artifacts Search for additional papers on this topic. The geometrical system response is determined in closed form in frequency space. Koral Journal of nuclear medicine: Morphologic artifacts Zero suppression Unsharp masking Kiloelectronvolt.


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Find all citations in this journal default. CitePeer Related Articles http: The characterization is divided into aspects related to the geometrical response and aspects related to effects due to interaction of photons with the collimator. By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy PolicyTerms of Serviceand Dataset License.

A complete theory of camera multihole collimators is presented. Gene Ontology Formivoni Terms. In the latter case, please turn on Javascript support in your web browser and reload this page. Vollimators Carlo simulation study. Citations Publications citing this paper.

The point spread function in the space domain for a certain collimator and source position can be calculated via a discrete fast Fourier transform. Collimator design for single photon emission tomography S. Institute of Collimatrs 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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