Use of a magnetic field to increase the spatial resolution of positron emission tomography | Zendy

Hammer Bruce E. | Zendy; Christensen Nelson L. | Zendy; Heil Brian G. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Use of a magnetic field to increase the spatial resolution of positron emission tomography

Author(s) -

Hammer Bruce E.,

Christensen Nelson L.,

Heil Brian G.

Publication year - 1994

Publication title -

medical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.473

H-Index - 180

eISSN - 2473-4209

pISSN - 0094-2405

DOI - 10.1118/1.597178

Subject(s) - positron emission tomography , positron , full width at half maximum , image resolution , positron emission , physics , magnetic field , resolution (logic) , range (aeronautics) , detector , nuclear medicine , annihilation , optics , tomography , materials science , nuclear magnetic resonance , nuclear physics , electron , medicine , quantum mechanics , artificial intelligence , computer science , composite material

Detector geometry, spatial sampling, and more fundamentally, positron range and noncollinearity of annihilation photon emission define Positron Emission Tomography (PET) spatial resolution. In this paper, a strong magnetic field is used to constrain positron travel transverse to the field. Measurement of the spread function from a 500 μm diameter 68 Ga impregnated resin bead shows a squeezing of the full width at half maximum (FWHM) by a factor of 1.0, 1.22, 1.42, and 2.05, at 0, 4.0, 5.0, and 9.4 Tesla, respectively. The full width at tenth maximum (FWTM) decreases by a factor of 1.0, 1.73, 2.09, and 3.20, at 0, 4.0, 5.0, and 9.0 Tesla, respectively. Acquiring a PET image in a magnetic field should significantly reduce resolution loss due to positron range.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research