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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Received 5 January In final form 10 August References Publications referenced by this paper. The geometrical system response is determined in closed form in frequency space.

Geometrical response of multihole collimators. Instrument – device Detectors Mathematics.

Collimator characteristics and design. By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy PolicyTerms of Serviceand Dataset License. The Quarterly Journal of Nuclear Medicine: Citations Publications citing this paper.

A rotating parallel hole collimator for high collimatoes imaging of medium energy radionuclides. By continuing to use this site you agree to our use of cookies.

Collimators. – Abstract – Europe PMC

Difficulties and some new perspectives on avoiding both penetration and hole pattern artifacts while designing high-energy collimators are mentioned. Click here to close this overlay, or press the “Escape” key on your keyboard.

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Geometrical response of multihole collimators

Recently, we found that the collimator-to-detector gap greatly influences the hole-pattern artifacts. 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. Collimator design for single photon emission tomography S. Diagnostic Nuclear Medicine, M. CitePeer Related Articles http: FormiconiDonald Lee GunterEleonora Vanzi Published in IEEE Transactions on Nuclear Science Multihole collimators are the most important piece of formiconj in determining the tradeoff between spatial resolution and noise in nuclear medicine images.

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

forrmiconi Gene Ontology GO Terms. Dalrymple 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.

Study of high-energy multihole coolimators. 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. In the latter case, please turn on Javascript support in your web browser and reload this page. In section Collimator characterization: Get permission to re-use this article. Showing of 19 references. Morphologic artifacts Zero suppression Unsharp masking Kiloelectronvolt.

Study of high-energy multihole collimators

Sandler Journal of nuclear medicine: In the subsequent sections, the tools available for the characterization of cllimators collimators are described. Its members are professionals working in healthcare, education, industry and research.


The point spread function in the space domain for a certain collimator and source position can be calculated via a discrete fast Fourier transform.

A complete theory of camera multihole collimators is presented.

To find out more, see our Privacy and Cookies policy. Sign up for new issue notifications. It sets and advises on standards for the practice, education and training of scientists and engineers working in healthcare to secure an effective and appropriate workforce. The characterization is divided into aspects related to the geometrical response and aspects related to effects due to interaction of photons with the collimator. This site uses cookies.

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.

Koral Journal of nuclear medicine: Nowadays zr rather complete theoretical description of the collimator geometrical response is available. Design and performance evaluation of a new high energy parallel hole collimator for radioiodine planar imaging by gamma cameras: Physics of collimator design.