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, .

Author: Molabar Yozshurn
Country: Italy
Language: English (Spanish)
Genre: Health and Food
Published (Last): 23 July 2008
Pages: 264
PDF File Size: 12.62 Mb
ePub File Size: 20.43 Mb
ISBN: 383-2-91116-610-7
Downloads: 58479
Price: Free* [*Free Regsitration Required]
Uploader: Goltikora

A complete theory of camera multihole collimators is presented.

References Publications referenced by this paper. 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. In the subsequent sections, the tools available for the characterization of multihole collimators are described. In the introduction, the classic formulas to describe the performances of multihole collimator are presented with an overview of the basic concepts.

Get permission to re-use this article. Collimator design for single photon emission tomography S.

The characterization is divided into aspects related to the geometrical response and aspects related to effects due to interaction of photons with the collimator. Skip to search form Skip to main content. Monte Carlo simulation study. From This Paper Figures, tables, and topics from this paper.


Buy this article in print. Either your web browser doesn’t support Javascript or it is currently turned off. 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 rotating parallel hole collimator for high resolution imaging of medium energy radionuclides.

In addition, we also showed that specific values of the gap exist which minimize the artifacts: Difficulties collumators some new perspectives on avoiding both penetration and hole pattern artifacts while designing high-energy collimators are mentioned.

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

Formiconi Physics in medicine and biology SPECT imaging of fluorine Vahid MoslemiMansour Ashoor Annals of nuclear medicine Gene Ontology GO Terms. DewarajaMichael LjungbergKenneth F. In section Collimator characterization: Or filter your current search. Design and performance evaluation of a new high energy parallel hole collimator for radioiodine planar imaging by gamma cameras: Received 5 January In final form 10 August CitePeer Related Articles http: Find all citations in this journal default.

Study of high-energy multihole collimators. This site uses cookies. Geometrical response of multihole collimators. IPEM publishes scientific journals and books and organises conferences to disseminate knowledge and support members in their development. Morphologic artifacts Search for additional papers on this topic. Sandler Journal of nuclear medicine: FormiconiDonald Lee GunterEleonora Vanzi Af in IEEE Transactions on Nuclear Science Multihole collimators are the most important piece of instrumentation in determining the tradeoff between spatial cormiconi and noise in nuclear medicine images.


Geometrical response of multihole collimators – IOPscience

Morphologic artifacts Zero suppression Unsharp masking Kiloelectronvolt. Koral Journal of nuclear medicine: To find out more, see our Privacy and Cookies policy. 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.

Diagnostic Nuclear Medicine, M. Topics Discussed in This Formcioni. In the latter case, please turn on Javascript support in your web browser and reload colljmators page.

Geometrical response of multihole collimators

By continuing to use this site you agree to our use of cookies. 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.

Author: admin